diff --git a/.gitignore b/.gitignore
index 725932c5..9a319865 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,4 +13,7 @@
 .externalNativeBuild
 
 #Github pages
-/gh-pages
\ No newline at end of file
+/gh-pages
+
+#Private files
+/app/google-services.json
\ No newline at end of file
diff --git a/.idea/codeStyles/Project.xml b/.idea/codeStyles/Project.xml
index cb22ebb7..c33b7e4e 100644
--- a/.idea/codeStyles/Project.xml
+++ b/.idea/codeStyles/Project.xml
@@ -1,18 +1,9 @@
 <component name="ProjectCodeStyleConfiguration">
   <code_scheme name="Project" version="173">
-    <AndroidXmlCodeStyleSettings>
-      <option name="USE_CUSTOM_SETTINGS" value="true" />
-    </AndroidXmlCodeStyleSettings>
     <JetCodeStyleSettings>
       <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
     </JetCodeStyleSettings>
-    <XML>
-      <option name="XML_KEEP_LINE_BREAKS" value="false" />
-      <option name="XML_ALIGN_ATTRIBUTES" value="false" />
-      <option name="XML_SPACE_INSIDE_EMPTY_TAG" value="true" />
-    </XML>
     <codeStyleSettings language="XML">
-      <option name="FORCE_REARRANGE_MODE" value="1" />
       <indentOptions>
         <option name="CONTINUATION_INDENT_SIZE" value="4" />
       </indentOptions>
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 37a75096..7bfef59d 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/app/build.gradle b/app/build.gradle
index 854a683a..9aecd601 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -13,8 +13,8 @@ android {
         applicationId "xyz.quaver.pupil"
         minSdkVersion 16
         targetSdkVersion 29
-        versionCode 21
-        versionName "3.0"
+        versionCode 27
+        versionName "3.2-beta2"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         multiDexEnabled true
         vectorDrawables.useSupportLibrary = true
@@ -25,12 +25,17 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
         buildTypes.each {
-            it.buildConfigField('boolean', 'PRERELEASE', 'false')
+            it.buildConfigField('boolean', 'PRERELEASE', 'true')
+            it.buildConfigField('boolean', 'CENSOR', 'false')
         }
     }
     kotlinOptions {
         freeCompilerArgs += '-Xuse-experimental=kotlin.Experimental'
     }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
 }
 
 dependencies {
@@ -44,15 +49,16 @@ dependencies {
     implementation "org.jetbrains.kotlinx:kotlinx-serialization-runtime:0.11.0"
     implementation 'androidx.appcompat:appcompat:1.0.2'
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
-    implementation 'androidx.preference:preference:1.1.0-beta01'
+    implementation 'androidx.preference:preference:1.1.0-rc01'
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    implementation 'androidx.gridlayout:gridlayout:1.0.0'
     implementation 'androidx.lifecycle:lifecycle-extensions:2.0.0'
     implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.0.0'
     implementation 'androidx.legacy:legacy-support-v4:1.0.0'
     implementation 'com.android.support:multidex:1.0.3'
-    implementation 'com.google.android.material:material:1.0.0'
-    implementation 'com.google.firebase:firebase-core:17.0.0'
-    implementation 'com.google.firebase:firebase-perf:18.0.1'
+    implementation 'com.google.android.material:material:1.1.0-alpha09'
+    implementation 'com.google.firebase:firebase-core:17.1.0'
+    implementation 'com.google.firebase:firebase-perf:19.0.0'
     implementation 'com.crashlytics.sdk.android:crashlytics:2.10.1'
     implementation 'com.github.arimorty:floatingsearchview:2.1.1'
     implementation 'com.github.clans:fab:1.6.4'
@@ -61,6 +67,7 @@ dependencies {
         transitive = false
     }
     implementation 'com.andrognito.patternlockview:patternlockview:1.0.0'
+    implementation 'com.jsibbold:zoomage:1.3.0'
     implementation "ru.noties.markwon:core:${markwonVersion}"
     kapt 'com.github.bumptech.glide:compiler:4.9.0'
     testImplementation 'junit:junit:4.12'
diff --git a/app/release/output.json b/app/release/output.json
index e36241c5..16d1dc23 100644
--- a/app/release/output.json
+++ b/app/release/output.json
@@ -1 +1 @@
-[{"outputType":{"type":"APK"},"apkData":{"type":"MAIN","splits":[],"versionCode":21,"versionName":"2.12","enabled":true,"outputFile":"app-release.apk","fullName":"release","baseName":"release"},"path":"app-release.apk","properties":{}}]
\ No newline at end of file
+[{"outputType":{"type":"APK"},"apkData":{"type":"MAIN","splits":[],"versionCode":25,"versionName":"3.1","enabled":true,"outputFile":"app-release.apk","fullName":"release","baseName":"release"},"path":"app-release.apk","properties":{}}]
\ No newline at end of file
diff --git a/app/src/main/java/xyz/quaver/pupil/Pupil.kt b/app/src/main/java/xyz/quaver/pupil/Pupil.kt
index bb72e44f..b9363bef 100644
--- a/app/src/main/java/xyz/quaver/pupil/Pupil.kt
+++ b/app/src/main/java/xyz/quaver/pupil/Pupil.kt
@@ -18,13 +18,10 @@
 
 package xyz.quaver.pupil
 
-import android.app.DownloadManager
 import android.app.Notification
 import android.app.NotificationChannel
 import android.app.NotificationManager
-import android.content.BroadcastReceiver
 import android.content.Context
-import android.content.Intent
 import android.os.Build
 import androidx.appcompat.app.AppCompatDelegate
 import androidx.core.content.ContextCompat
@@ -76,6 +73,11 @@ class Pupil : MultiDexApplication() {
             preference.edit().putBoolean("channel_created", true).apply()
         }
 
+        AppCompatDelegate.setDefaultNightMode(when (preference.getBoolean("dark_mode", false)) {
+            true -> AppCompatDelegate.MODE_NIGHT_YES
+            false -> AppCompatDelegate.MODE_NIGHT_NO
+        })
+
         super.onCreate()
     }
 
diff --git a/app/src/main/java/xyz/quaver/pupil/adapters/GalleryBlockAdapter.kt b/app/src/main/java/xyz/quaver/pupil/adapters/GalleryBlockAdapter.kt
index efbc0851..415913db 100644
--- a/app/src/main/java/xyz/quaver/pupil/adapters/GalleryBlockAdapter.kt
+++ b/app/src/main/java/xyz/quaver/pupil/adapters/GalleryBlockAdapter.kt
@@ -18,21 +18,18 @@
 
 package xyz.quaver.pupil.adapters
 
-import android.app.AlertDialog
-import android.graphics.BitmapFactory
 import android.graphics.drawable.Drawable
 import android.util.SparseBooleanArray
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import android.widget.ArrayAdapter
 import android.widget.LinearLayout
 import androidx.cardview.widget.CardView
 import androidx.core.content.ContextCompat
 import androidx.recyclerview.widget.RecyclerView
 import androidx.vectordrawable.graphics.drawable.Animatable2Compat
 import androidx.vectordrawable.graphics.drawable.AnimatedVectorDrawableCompat
-import com.bumptech.glide.Glide
+import com.bumptech.glide.RequestManager
 import com.bumptech.glide.load.engine.DiskCacheStrategy
 import com.google.android.material.chip.Chip
 import kotlinx.android.synthetic.main.item_galleryblock.view.*
@@ -44,18 +41,20 @@ import kotlinx.serialization.json.Json
 import kotlinx.serialization.json.JsonConfiguration
 import xyz.quaver.hitomi.GalleryBlock
 import xyz.quaver.hitomi.Reader
+import xyz.quaver.pupil.BuildConfig
 import xyz.quaver.pupil.Pupil
 import xyz.quaver.pupil.R
 import xyz.quaver.pupil.types.Tag
 import xyz.quaver.pupil.util.Histories
 import xyz.quaver.pupil.util.getCachedGallery
+import xyz.quaver.pupil.util.wordCapitalize
 import java.io.File
 import java.util.*
 import kotlin.collections.ArrayList
 import kotlin.collections.HashMap
 import kotlin.concurrent.schedule
 
-class GalleryBlockAdapter(private val galleries: List<Pair<GalleryBlock, Deferred<String>>>) : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
+class GalleryBlockAdapter(private val glide: RequestManager, private val galleries: List<Pair<GalleryBlock, Deferred<String>>>) : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
 
     enum class ViewType {
         NEXT,
@@ -66,7 +65,7 @@ class GalleryBlockAdapter(private val galleries: List<Pair<GalleryBlock, Deferre
     private lateinit var favorites: Histories
 
     inner class GalleryViewHolder(val view: CardView) : RecyclerView.ViewHolder(view) {
-        fun bind(holder: GalleryViewHolder, item: Pair<GalleryBlock, Deferred<String>>) {
+        fun bind(item: Pair<GalleryBlock, Deferred<String>>) {
             with(view) {
                 val resources = context.resources
                 val languages = resources.getStringArray(R.array.languages).map {
@@ -83,11 +82,15 @@ class GalleryBlockAdapter(private val galleries: List<Pair<GalleryBlock, Deferre
                 CoroutineScope(Dispatchers.Main).launch {
                     val cache = thumbnail.await()
 
-                    Glide.with(holder.view)
+                    glide
                         .load(cache)
                         .skipMemoryCache(true)
                         .diskCacheStrategy(DiskCacheStrategy.NONE)
                         .error(R.drawable.image_broken_variant)
+                        .apply {
+                            if (BuildConfig.CENSOR)
+                                override(5, 8)
+                        }
                         .into(galleryblock_thumbnail)
                 }
 
@@ -95,6 +98,13 @@ class GalleryBlockAdapter(private val galleries: List<Pair<GalleryBlock, Deferre
                 val readerCache = { File(getCachedGallery(context, galleryBlock.id), "reader.json") }
                 val imageCache = { File(getCachedGallery(context, galleryBlock.id), "images") }
 
+                try {
+                   Json(JsonConfiguration.Stable)
+                        .parse(Reader.serializer(), readerCache.invoke().readText())
+                } catch(e: Exception) {
+                    readerCache.invoke().delete()
+                }
+
                 if (readerCache.invoke().exists()) {
                     val reader = Json(JsonConfiguration.Stable)
                         .parse(Reader.serializer(), readerCache.invoke().readText())
@@ -146,8 +156,6 @@ class GalleryBlockAdapter(private val galleries: List<Pair<GalleryBlock, Deferre
                                         }
                                     } else
                                         view.galleryblock_progress_complete.visibility = View.INVISIBLE
-
-                                    null
                                 }
                             }
                         }
@@ -163,19 +171,6 @@ class GalleryBlockAdapter(private val galleries: List<Pair<GalleryBlock, Deferre
                         artists.isNotEmpty() -> View.VISIBLE
                         else -> View.GONE
                     }
-                    setOnClickListener {
-                        if (artists.size > 1) {
-                            AlertDialog.Builder(context).apply {
-                                setAdapter(ArrayAdapter(context, android.R.layout.select_dialog_item, artists)) { _, index ->
-                                    for (callback in onChipClickedHandler)
-                                        callback.invoke(Tag("artist", artists[index]))
-                                }
-                            }.show()
-                        } else {
-                            for(callback in onChipClickedHandler)
-                                callback.invoke(Tag("artist", artists.first()))
-                        }
-                    }
                 }
                 with(galleryblock_series) {
                     text =
@@ -186,31 +181,8 @@ class GalleryBlockAdapter(private val galleries: List<Pair<GalleryBlock, Deferre
                         series.isNotEmpty() -> View.VISIBLE
                         else -> View.GONE
                     }
-                    setOnClickListener {
-                        setOnClickListener {
-                            if (series.size > 1) {
-                                AlertDialog.Builder(context).apply {
-                                    setAdapter(ArrayAdapter(context, android.R.layout.select_dialog_item, series)) { _, index ->
-                                        for (callback in onChipClickedHandler)
-                                            callback.invoke(Tag("series", series[index]))
-                                    }
-                                }.show()
-                            } else {
-                                for(callback in onChipClickedHandler)
-                                    callback.invoke(Tag("series", series.first()))
-                            }
-                        }
-                    }
-                }
-                with(galleryblock_type) {
-                    text = resources.getString(R.string.galleryblock_type, galleryBlock.type).wordCapitalize()
-                    setOnClickListener {
-                        setOnClickListener {
-                            for(callback in onChipClickedHandler)
-                                callback.invoke(Tag("type", galleryBlock.type))
-                        }
-                    }
                 }
+                galleryblock_type.text = resources.getString(R.string.galleryblock_type, galleryBlock.type).wordCapitalize()
                 with(galleryblock_language) {
                     text =
                         resources.getString(R.string.galleryblock_language, languages[galleryBlock.language])
@@ -218,48 +190,37 @@ class GalleryBlockAdapter(private val galleries: List<Pair<GalleryBlock, Deferre
                         galleryBlock.language.isNotEmpty() -> View.VISIBLE
                         else -> View.GONE
                     }
-                    setOnClickListener {
-                        setOnClickListener {
-                            for(callback in onChipClickedHandler)
-                                callback.invoke(Tag("language", galleryBlock.language))
-                        }
-                    }
                 }
 
                 galleryblock_tag_group.removeAllViews()
                 galleryBlock.relatedTags.forEach {
-                    val tag = Tag.parse(it).let {  tag ->
-                        when {
-                            tag.area != null -> tag
-                            else -> Tag("tag", it)
+                    galleryblock_tag_group.addView(Chip(context).apply {
+                        val tag = Tag.parse(it).let {  tag ->
+                            when {
+                                tag.area != null -> tag
+                                else -> Tag("tag", it)
+                            }
                         }
-                    }
 
-                    val chip = LayoutInflater.from(context)
-                        .inflate(R.layout.tag_chip, this, false) as Chip
-
-                    val icon = when(tag.area) {
-                        "male" -> {
-                            chip.setChipBackgroundColorResource(R.color.material_blue_700)
-                            chip.setTextColor(ContextCompat.getColor(context, android.R.color.white))
-                            ContextCompat.getDrawable(context, R.drawable.ic_gender_male_white)
+                        chipIcon = when(tag.area) {
+                            "male" -> {
+                                setChipBackgroundColorResource(R.color.material_blue_700)
+                                setTextColor(ContextCompat.getColor(context, android.R.color.white))
+                                ContextCompat.getDrawable(context, R.drawable.ic_gender_male_white)
+                            }
+                            "female" -> {
+                                setChipBackgroundColorResource(R.color.material_pink_600)
+                                setTextColor(ContextCompat.getColor(context, android.R.color.white))
+                                ContextCompat.getDrawable(context, R.drawable.ic_gender_female_white)
+                            }
+                            else -> null
                         }
-                        "female" -> {
-                            chip.setChipBackgroundColorResource(R.color.material_pink_600)
-                            chip.setTextColor(ContextCompat.getColor(context, android.R.color.white))
-                            ContextCompat.getDrawable(context, R.drawable.ic_gender_female_white)
+                        text = tag.tag.wordCapitalize()
+                        setOnClickListener {
+                            for (callback in onChipClickedHandler)
+                                callback.invoke(tag)
                         }
-                        else -> null
-                    }
-
-                    chip.chipIcon = icon
-                    chip.text = tag.tag.wordCapitalize()
-                    chip.setOnClickListener {
-                        for (callback in onChipClickedHandler)
-                            callback.invoke(tag)
-                    }
-
-                    galleryblock_tag_group.addView(chip)
+                    })
                 }
 
                 galleryblock_id.text = galleryBlock.id.toString()
@@ -311,15 +272,6 @@ class GalleryBlockAdapter(private val galleries: List<Pair<GalleryBlock, Deferre
         }
     }
 
-    private fun String.wordCapitalize() : String {
-        val result = ArrayList<String>()
-
-        for (word in this.split(" "))
-            result.add(word.capitalize())
-
-        return result.joinToString(" ")
-    }
-
     private val refreshTasks = HashMap<GalleryViewHolder, TimerTask>()
     val completeFlag = SparseBooleanArray()
 
@@ -350,7 +302,7 @@ class GalleryBlockAdapter(private val galleries: List<Pair<GalleryBlock, Deferre
 
     override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
         if (holder is GalleryViewHolder)
-            holder.bind(holder, galleries[position-(if (showPrev) 1 else 0)])
+            holder.bind(galleries[position-(if (showPrev) 1 else 0)])
     }
 
     override fun onViewDetachedFromWindow(holder: RecyclerView.ViewHolder) {
diff --git a/app/src/main/java/xyz/quaver/pupil/adapters/ReaderAdapter.kt b/app/src/main/java/xyz/quaver/pupil/adapters/ReaderAdapter.kt
index a86c04aa..9b4781a8 100644
--- a/app/src/main/java/xyz/quaver/pupil/adapters/ReaderAdapter.kt
+++ b/app/src/main/java/xyz/quaver/pupil/adapters/ReaderAdapter.kt
@@ -18,44 +18,76 @@
 
 package xyz.quaver.pupil.adapters
 
+import android.graphics.drawable.Drawable
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.ImageView
 import androidx.recyclerview.widget.RecyclerView
-import androidx.swiperefreshlayout.widget.CircularProgressDrawable
-import com.bumptech.glide.Glide
+import com.bumptech.glide.RequestManager
+import com.bumptech.glide.load.DataSource
 import com.bumptech.glide.load.engine.DiskCacheStrategy
+import com.bumptech.glide.load.engine.GlideException
+import com.bumptech.glide.request.RequestListener
+import com.bumptech.glide.request.target.Target
+import xyz.quaver.pupil.BuildConfig
 import xyz.quaver.pupil.R
+import xyz.quaver.pupil.util.getCachedGallery
+import java.io.File
 
-class ReaderAdapter(private val images: List<String>) : RecyclerView.Adapter<ReaderAdapter.ViewHolder>() {
+class ReaderAdapter(private val glide: RequestManager,
+                    private val galleryID: Int,
+                    private val images: List<String>) : RecyclerView.Adapter<ReaderAdapter.ViewHolder>() {
 
     var isFullScreen = false
+    private var prev : Drawable? = null
 
     class ViewHolder(val view: View) : RecyclerView.ViewHolder(view)
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
-        LayoutInflater.from(parent.context).inflate(
+        return LayoutInflater.from(parent.context).inflate(
             R.layout.item_reader, parent, false
         ).let {
-            return ViewHolder(it)
+            ViewHolder(it)
         }
     }
 
     override fun onBindViewHolder(holder: ViewHolder, position: Int) {
-        val progressDrawable = CircularProgressDrawable(holder.view.context).apply {
-            strokeWidth = 10f
-            centerRadius = 100f
-            start()
-        }
+        holder.view as ImageView
 
-        Glide.with(holder.view)
-            .load(images[position])
+        glide
+            .load(File(getCachedGallery(holder.view.context, galleryID), images[position]))
+            .dontTransform()
             .diskCacheStrategy(DiskCacheStrategy.NONE)
             .skipMemoryCache(true)
-            .placeholder(progressDrawable)
             .error(R.drawable.image_broken_variant)
-            .into(holder.view as ImageView)
+            .apply {
+                if (BuildConfig.CENSOR)
+                    override(5, 8)
+                if (isFullScreen)
+                    placeholder(prev)
+            }
+            .listener(object: RequestListener<Drawable> {
+                override fun onLoadFailed(
+                    e: GlideException?,
+                    model: Any?,
+                    target: Target<Drawable>?,
+                    isFirstResource: Boolean
+                ) = false
+
+                override fun onResourceReady(
+                    resource: Drawable?,
+                    model: Any?,
+                    target: Target<Drawable>?,
+                    dataSource: DataSource?,
+                    isFirstResource: Boolean
+                ): Boolean {
+                    prev = resource?.constantState?.newDrawable()?.mutate()
+
+                    return false
+                }
+            })
+            .into(holder.view)
     }
 
     override fun getItemCount() = images.size
diff --git a/app/src/main/java/xyz/quaver/pupil/adapters/ThumbnailAdapter.kt b/app/src/main/java/xyz/quaver/pupil/adapters/ThumbnailAdapter.kt
new file mode 100644
index 00000000..db85c79d
--- /dev/null
+++ b/app/src/main/java/xyz/quaver/pupil/adapters/ThumbnailAdapter.kt
@@ -0,0 +1,47 @@
+/*
+ *     Pupil, Hitomi.la viewer for Android
+ *     Copyright (C) 2019  tom5079
+ *
+ *     This program is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ *
+ *     This program is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package xyz.quaver.pupil.adapters
+
+import android.view.ViewGroup
+import android.widget.ImageView
+import androidx.recyclerview.widget.RecyclerView
+import com.bumptech.glide.RequestManager
+import xyz.quaver.pupil.BuildConfig
+
+class ThumbnailAdapter(private val glide: RequestManager, private val thumbnails: List<String>) : RecyclerView.Adapter<ThumbnailAdapter.ViewHolder>() {
+
+    class ViewHolder(val view: ImageView) : RecyclerView.ViewHolder(view)
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        return ViewHolder(ImageView(parent.context))
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        glide
+            .load(thumbnails[position])
+            .apply {
+                if (BuildConfig.CENSOR)
+                    override(5, 8)
+            }
+            .into(holder.view)
+    }
+
+    override fun getItemCount() = thumbnails.size
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/xyz/quaver/pupil/ui/GalleryDialog.kt b/app/src/main/java/xyz/quaver/pupil/ui/GalleryDialog.kt
new file mode 100644
index 00000000..37d6ff9e
--- /dev/null
+++ b/app/src/main/java/xyz/quaver/pupil/ui/GalleryDialog.kt
@@ -0,0 +1,276 @@
+/*
+ *     Pupil, Hitomi.la viewer for Android
+ *     Copyright (C) 2019  tom5079
+ *
+ *     This program is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ *
+ *     This program is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package xyz.quaver.pupil.ui
+
+import android.app.Dialog
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import android.view.Gravity
+import android.view.LayoutInflater
+import android.view.View
+import android.widget.ImageView
+import android.widget.LinearLayout
+import android.widget.LinearLayout.LayoutParams
+import androidx.core.content.ContextCompat
+import androidx.gridlayout.widget.GridLayout
+import androidx.recyclerview.widget.GridLayoutManager
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import com.bumptech.glide.Glide
+import com.bumptech.glide.RequestManager
+import com.google.android.material.chip.Chip
+import com.google.android.material.snackbar.Snackbar
+import kotlinx.android.synthetic.main.dialog_galleryblock.*
+import kotlinx.android.synthetic.main.gallery_details.view.*
+import kotlinx.android.synthetic.main.item_gallery_details.view.*
+import kotlinx.coroutines.*
+import xyz.quaver.hitomi.Gallery
+import xyz.quaver.hitomi.GalleryBlock
+import xyz.quaver.hitomi.getGallery
+import xyz.quaver.hitomi.getGalleryBlock
+import xyz.quaver.pupil.Pupil
+import xyz.quaver.pupil.R
+import xyz.quaver.pupil.adapters.GalleryBlockAdapter
+import xyz.quaver.pupil.adapters.ThumbnailAdapter
+import xyz.quaver.pupil.types.Tag
+import xyz.quaver.pupil.util.ItemClickSupport
+import xyz.quaver.pupil.util.wordCapitalize
+
+class GalleryDialog(context: Context, private val galleryID: Int) : Dialog(context) {
+
+    private val languages = context.resources.getStringArray(R.array.languages).map {
+        it.split("|").let { split ->
+            Pair(split[0], split[1])
+        }
+    }.toMap()
+
+    private val glide = Glide.with(context)
+
+    val onChipClickedHandler = ArrayList<((Tag) -> (Unit))>()
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.dialog_galleryblock)
+
+        window?.attributes.apply {
+            this ?: return@apply
+
+            width = LayoutParams.MATCH_PARENT
+            height = LayoutParams.MATCH_PARENT
+        }
+
+        with(gallery_fab) {
+            setImageDrawable(ContextCompat.getDrawable(context, R.drawable.arrow_right))
+            setOnClickListener {
+                context.startActivity(Intent(context, ReaderActivity::class.java).apply {
+                    putExtra("galleryID", galleryID)
+                })
+                (context.applicationContext as Pupil).histories.add(galleryID)
+            }
+        }
+
+        CoroutineScope(Dispatchers.IO).launch {
+            try {
+                val gallery = getGallery(galleryID)
+
+                launch(Dispatchers.Main) {
+                    gallery_progressbar.visibility = View.GONE
+                    gallery_title.text = gallery.title
+                    gallery_artist.text = gallery.artists.joinToString(", ") { it.wordCapitalize() }
+
+                    with(gallery_type) {
+                        text = gallery.type.wordCapitalize()
+                        setOnClickListener {
+                            gallery.type.let {
+                                when (it) {
+                                    "artist CG" -> "artistcg"
+                                    "game CG" -> "gamecg"
+                                    else -> it
+                                }
+                            }.let {
+                                onChipClickedHandler.forEach { handler ->
+                                    handler.invoke(Tag("type", it))
+                                }
+                            }
+                        }
+                    }
+
+                    Glide.with(context)
+                        .load(gallery.thumbnails.firstOrNull())
+                        .into(gallery_thumbnail)
+
+                    addDetails(gallery)
+                    addThumbnails(gallery)
+                    addRelated(gallery)
+                }
+            } catch (e: Exception) {
+                Snackbar.make(gallery_layout, R.string.unable_to_connect, Snackbar.LENGTH_INDEFINITE).show()
+            }
+        }
+    }
+
+    private fun addDetails(gallery: Gallery) {
+        val inflater = LayoutInflater.from(context)
+        
+        inflater.inflate(R.layout.gallery_details, gallery_contents, false).apply {
+            gallery_details.setText(R.string.gallery_details)
+
+            listOf(
+                R.string.gallery_artists,
+                R.string.gallery_groups,
+                R.string.gallery_language,
+                R.string.gallery_series,
+                R.string.gallery_characters,
+                R.string.gallery_tags
+            ).zip(
+                listOf(
+                    gallery.artists.map { Tag("artist", it) },
+                    gallery.groups.map { Tag("group", it) },
+                    listOf(gallery.language).map { Tag("language", it) },
+                    gallery.series.map { Tag("series", it) },
+                    gallery.characters.map { Tag("character", it) },
+                    gallery.tags.map {
+                        Tag.parse(it).let { tag ->
+                            when {
+                                tag.area != null -> tag
+                                else -> Tag("tag", it)
+                            }
+                        }
+                    }
+                )
+            ).filter {
+                (_, content) -> content.isNotEmpty()
+            }.forEach { (title, content) ->
+                inflater.inflate(R.layout.item_gallery_details, gallery_details_contents, false).apply {
+                    gallery_details_type.setText(title)
+
+                    content.forEach { tag ->
+                        gallery_details_tags.addView(
+                            Chip(context).apply {
+                                chipIcon = when(tag.area) {
+                                    "male" -> {
+                                        setChipBackgroundColorResource(R.color.material_blue_700)
+                                        setTextColor(ContextCompat.getColor(context, android.R.color.white))
+                                        ContextCompat.getDrawable(context, R.drawable.ic_gender_male_white)
+                                    }
+                                    "female" -> {
+                                        setChipBackgroundColorResource(R.color.material_pink_600)
+                                        setTextColor(ContextCompat.getColor(context, android.R.color.white))
+                                        ContextCompat.getDrawable(context, R.drawable.ic_gender_female_white)
+                                    }
+                                    else -> null
+                                }
+
+                                text = when (tag.area) {
+                                    "language" -> languages[tag.tag]
+                                    else -> tag.tag.wordCapitalize()
+                                }
+
+                                setOnClickListener {
+                                    onChipClickedHandler.forEach { handler ->
+                                        handler.invoke(tag)
+                                    }
+                                }
+                            }
+                        )
+                    }
+                }.let {
+                    gallery_details_contents.addView(it)
+                }
+            }
+        }.let {
+            gallery_contents.addView(it)
+        }
+    }
+
+    private fun addThumbnails(gallery: Gallery) {
+        val inflater = LayoutInflater.from(context)
+
+        inflater.inflate(R.layout.gallery_details, gallery_contents, false).apply {
+            gallery_details.setText(R.string.gallery_thumbnails)
+
+            RecyclerView(context).apply {
+                layoutManager = GridLayoutManager(context, 3)
+                adapter = ThumbnailAdapter(glide, gallery.thumbnails)
+            }.let {
+                gallery_details_contents.addView(it, LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT))
+            }
+        }.let {
+            gallery_contents.addView(it)
+        }
+    }
+
+    private fun addRelated(gallery: Gallery) {
+        val inflater = LayoutInflater.from(context)
+        val galleries = ArrayList<Pair<GalleryBlock, Deferred<String>>>()
+
+        val adapter = GalleryBlockAdapter(glide, galleries).apply {
+            onChipClickedHandler.add { tag ->
+                this@GalleryDialog.onChipClickedHandler.forEach { handler ->
+                    handler.invoke(tag)
+                }
+            }
+        }
+
+        CoroutineScope(Dispatchers.Main).launch {
+            gallery.related.forEachIndexed { i, galleryID ->
+                async(Dispatchers.IO) {
+                    getGalleryBlock(galleryID)
+                }.let {
+                    val galleryBlock = it.await() ?: return@let
+
+                    galleries.add(Pair(galleryBlock, GlobalScope.async { galleryBlock.thumbnails.first() }))
+                    adapter.notifyItemInserted(i)
+                }
+            }
+        }
+
+        inflater.inflate(R.layout.gallery_details, gallery_contents, false).apply {
+            gallery_details.setText(R.string.gallery_related)
+
+            RecyclerView(context).apply {
+                layoutManager = LinearLayoutManager(context)
+                this.adapter = adapter
+
+                ItemClickSupport.addTo(this)
+                    .setOnItemClickListener { _, position, _ ->
+                        context.startActivity(Intent(context, ReaderActivity::class.java).apply {
+                            putExtra("galleryID", galleries[position].first.id)
+                        })
+                        (context.applicationContext as Pupil).histories.add(galleries[position].first.id)
+                    }
+                    .setOnItemLongClickListener { _, position, _ ->
+                        GalleryDialog(context, galleries[position].first.id).apply {
+                            onChipClickedHandler.add { tag ->
+                                this@GalleryDialog.onChipClickedHandler.forEach { it.invoke(tag) }
+                            }
+                        }.show()
+
+                        true
+                    }
+            }.let {
+                gallery_details_contents.addView(it, LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT))
+            }
+        }.let {
+            gallery_contents.addView(it)
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/xyz/quaver/pupil/ui/LockActivity.kt b/app/src/main/java/xyz/quaver/pupil/ui/LockActivity.kt
index 81f7622d..804d9d6a 100644
--- a/app/src/main/java/xyz/quaver/pupil/ui/LockActivity.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/LockActivity.kt
@@ -19,6 +19,7 @@
 package xyz.quaver.pupil.ui
 
 import android.app.Activity
+import android.app.AlertDialog
 import android.os.Bundle
 import androidx.appcompat.app.AppCompatActivity
 import com.andrognito.patternlockview.PatternLockView
@@ -35,7 +36,18 @@ class LockActivity : AppCompatActivity() {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_lock)
 
-        val lockManager = LockManager(this)
+        val lockManager = try {
+            LockManager(this)
+        } catch (e: Exception) {
+            AlertDialog.Builder(this).apply {
+                setTitle(R.string.warning)
+                setMessage(R.string.lock_corrupted)
+                setPositiveButton(android.R.string.ok) { _, _ ->
+                    finish()
+                }
+            }.show()
+            return
+        }
 
         val mode = intent.getStringExtra("mode")
 
@@ -46,9 +58,10 @@ class LockActivity : AppCompatActivity() {
 
         when(mode) {
             null -> {
-                if (lockManager.empty()) {
+                if (lockManager.isEmpty()) {
                     setResult(RESULT_OK)
                     finish()
+                    return
                 }
             }
             "add_lock" -> {
diff --git a/app/src/main/java/xyz/quaver/pupil/ui/MainActivity.kt b/app/src/main/java/xyz/quaver/pupil/ui/MainActivity.kt
index c4708b98..24fcc389 100644
--- a/app/src/main/java/xyz/quaver/pupil/ui/MainActivity.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/MainActivity.kt
@@ -25,14 +25,16 @@ import android.content.BroadcastReceiver
 import android.content.Context
 import android.content.Intent
 import android.content.IntentFilter
-import android.content.pm.PackageManager
 import android.graphics.drawable.Animatable
 import android.net.Uri
 import android.os.Bundle
 import android.os.Environment
 import android.text.*
 import android.text.style.AlignmentSpan
-import android.view.*
+import android.view.KeyEvent
+import android.view.MotionEvent
+import android.view.View
+import android.view.WindowManager
 import android.widget.EditText
 import android.widget.ImageView
 import android.widget.LinearLayout
@@ -42,7 +44,6 @@ import androidx.appcompat.app.AppCompatActivity
 import androidx.cardview.widget.CardView
 import androidx.core.app.ActivityCompat
 import androidx.core.content.ContextCompat
-import androidx.core.content.FileProvider
 import androidx.core.content.res.ResourcesCompat
 import androidx.core.view.GravityCompat
 import androidx.preference.PreferenceManager
@@ -50,11 +51,11 @@ import androidx.vectordrawable.graphics.drawable.AnimatedVectorDrawableCompat
 import com.arlib.floatingsearchview.FloatingSearchView
 import com.arlib.floatingsearchview.suggestions.model.SearchSuggestion
 import com.arlib.floatingsearchview.util.view.SearchInputView
+import com.bumptech.glide.Glide
 import com.google.android.material.appbar.AppBarLayout
 import com.google.android.material.snackbar.Snackbar
 import kotlinx.android.synthetic.main.activity_main.*
 import kotlinx.android.synthetic.main.activity_main_content.*
-import kotlinx.android.synthetic.main.dialog_galleryblock.view.*
 import kotlinx.coroutines.*
 import kotlinx.serialization.ImplicitReflectionSerializer
 import kotlinx.serialization.json.Json
@@ -126,7 +127,21 @@ class MainActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
-        startActivityForResult(Intent(this, LockActivity::class.java), REQUEST_LOCK)
+        val lockManager = try {
+            LockManager(this)
+        } catch (e: Exception) {
+            android.app.AlertDialog.Builder(this).apply {
+                setTitle(R.string.warning)
+                setMessage(R.string.lock_corrupted)
+                setPositiveButton(android.R.string.ok) { _, _ ->
+                    finish()
+                }
+            }.show()
+            return
+        }
+
+        if (lockManager.isNotEmpty())
+            startActivityForResult(Intent(this, LockActivity::class.java), REQUEST_LOCK)
 
         checkPermissions()
 
@@ -191,10 +206,10 @@ class MainActivity : AppCompatActivity() {
         val maxPage = ceil(totalItems / perPage.toDouble()).roundToInt()
 
         return when(keyCode) {
-            KeyEvent.KEYCODE_VOLUME_DOWN -> {
-                if (currentPage < maxPage) {
+            KeyEvent.KEYCODE_VOLUME_UP -> {
+                if (currentPage > 0) {
                     runOnUiThread {
-                        currentPage++
+                        currentPage--
 
                         cancelFetch()
                         clearGalleries()
@@ -205,10 +220,10 @@ class MainActivity : AppCompatActivity() {
 
                 true
             }
-            KeyEvent.KEYCODE_VOLUME_UP -> {
-                if (currentPage > 0) {
+            KeyEvent.KEYCODE_VOLUME_DOWN -> {
+                if (currentPage < maxPage) {
                     runOnUiThread {
-                        currentPage--
+                        currentPage++
 
                         cancelFetch()
                         clearGalleries()
@@ -243,6 +258,12 @@ class MainActivity : AppCompatActivity() {
 
     private fun checkUpdate() {
 
+        val preferences = PreferenceManager.getDefaultSharedPreferences(this)
+        val ignoreUpdateUntil = preferences.getLong("ignore_update_until", 0)
+
+        if (ignoreUpdateUntil > System.currentTimeMillis())
+            return
+
         fun extractReleaseNote(update: JsonObject, locale: String) : String {
             val markdown = update["body"]!!.content
 
@@ -297,6 +318,16 @@ class MainActivity : AppCompatActivity() {
                 val msg = extractReleaseNote(update, Locale.getDefault().language)
                 setMessage(Markwon.create(context).toMarkdown(msg))
                 setPositiveButton(android.R.string.yes) { _, _ ->
+                    if (!this@MainActivity.hasPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
+                        AlertDialog.Builder(this@MainActivity).apply {
+                            setTitle(R.string.warning)
+                            setMessage(R.string.update_no_permission)
+                            setPositiveButton(android.R.string.ok) { _, _ -> }
+                        }.show()
+
+                        return@setPositiveButton
+                    }
+
                     val request = DownloadManager.Request(Uri.parse(url)).apply {
                         setDescription(getString(R.string.update_notification_description))
                         setTitle(getString(R.string.app_name))
@@ -308,17 +339,29 @@ class MainActivity : AppCompatActivity() {
 
                     registerReceiver(object: BroadcastReceiver() {
                         override fun onReceive(context: Context?, intent: Intent?) {
-                            val install = Intent(Intent.ACTION_VIEW).apply {
-                                flags = Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_GRANT_READ_URI_PERMISSION
-                                setDataAndType(manager.getUriForDownloadedFile(id), manager.getMimeTypeForDownloadedFile(id))
-                            }
+                            try {
+                                val install = Intent(Intent.ACTION_VIEW).apply {
+                                    flags = Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_GRANT_READ_URI_PERMISSION
+                                    setDataAndType(manager.getUriForDownloadedFile(id), manager.getMimeTypeForDownloadedFile(id))
+                                }
 
-                            startActivity(install)
-                            unregisterReceiver(this)
+                                startActivity(install)
+                                unregisterReceiver(this)
+                            } catch (e: Exception) {
+                                AlertDialog.Builder(this@MainActivity).apply {
+                                    setTitle(R.string.update_failed)
+                                    setMessage(R.string.update_failed_message)
+                                    setPositiveButton(android.R.string.ok) { _, _ -> }
+                                }.show()
+                            }
                         }
                     }, IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE))
                 }
-                setNegativeButton(android.R.string.no) { _, _ ->}
+                setNegativeButton(R.string.ignore_update) { _, _ ->
+                    preferences.edit()
+                        .putLong("ignore_update_until", System.currentTimeMillis() + 604800000)
+                        .apply()
+                }
             }
 
             launch(Dispatchers.Main) {
@@ -328,7 +371,7 @@ class MainActivity : AppCompatActivity() {
     }
 
     private fun checkPermissions() {
-        if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED)
+        if (this.hasPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE))
             ActivityCompat.requestPermissions(this, arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE), 13489)
     }
 
@@ -435,7 +478,6 @@ class MainActivity : AppCompatActivity() {
                         runOnUiThread {
                             cancelFetch()
                             clearGalleries()
-                            fetchGalleries(query, sortMode)
                             loadBlocks()
                         }
                     }
@@ -461,6 +503,8 @@ class MainActivity : AppCompatActivity() {
                                 intent.putExtra("galleryID", gallery.id)
 
                                 startActivity(intent)
+
+                                histories.add(gallery.id)
                             } catch (e: Exception) {
                                 Snackbar.make(main_layout,
                                     R.string.main_open_gallery_by_id_error, Snackbar.LENGTH_LONG).show()
@@ -479,7 +523,7 @@ class MainActivity : AppCompatActivity() {
 
     private fun setupRecyclerView() {
         with(main_recyclerview) {
-            adapter = GalleryBlockAdapter(galleries).apply {
+            adapter = GalleryBlockAdapter(Glide.with(this@MainActivity), galleries).apply {
                 onChipClickedHandler.add {
                     runOnUiThread {
                         query = it.toQuery()
@@ -494,7 +538,6 @@ class MainActivity : AppCompatActivity() {
             }
             ItemClickSupport.addTo(this)
                 .setOnItemClickListener { _, position, v ->
-
                     if (v !is CardView)
                         return@setOnItemClickListener
 
@@ -506,66 +549,27 @@ class MainActivity : AppCompatActivity() {
                     startActivity(intent)
 
                     histories.add(gallery.id)
-                }.setOnItemLongClickListener { recyclerView, position, v ->
+                }.setOnItemLongClickListener { _, position, v ->
 
                     if (v !is CardView)
                         return@setOnItemLongClickListener true
 
-                    val gallery = galleries[position].first
-                    val view = LayoutInflater.from(this@MainActivity)
-                        .inflate(R.layout.dialog_galleryblock, recyclerView, false)
+                    val galleryID = galleries[position].first.id
 
-                    val dialog = AlertDialog.Builder(this@MainActivity).apply {
-                        setView(view)
-                    }.create()
+                    GalleryDialog(this@MainActivity, galleryID).apply {
+                        onChipClickedHandler.add {
+                            runOnUiThread {
+                                query = it.toQuery()
+                                currentPage = 0
 
-                    with(view.main_dialog_download) {
-                        text = when(GalleryDownloader.get(gallery.id)) {
-                            null -> getString(R.string.reader_fab_download)
-                            else -> getString(R.string.reader_fab_download_cancel)
-                        }
-                        isEnabled = !(adapter as GalleryBlockAdapter).completeFlag.get(gallery.id, false)
-                        setOnClickListener {
-                            val downloader = GalleryDownloader.get(gallery.id)
-                            if (downloader == null)
-                                GalleryDownloader(context, gallery.id, true).start()
-                            else {
-                                downloader.cancel()
-                                downloader.clearNotification()
+                                cancelFetch()
+                                clearGalleries()
+                                fetchGalleries(query, sortMode)
+                                loadBlocks()
                             }
-
-                            dialog.dismiss()
+                            dismiss()
                         }
-                    }
-
-                    view.main_dialog_delete.setOnClickListener {
-                        CoroutineScope(Dispatchers.Default).launch {
-                            with(GalleryDownloader[gallery.id]) {
-                                this?.cancelAndJoin()
-                                this?.clearNotification()
-                            }
-                            val cache = File(cacheDir, "imageCache/${gallery.id}")
-                            val data = getCachedGallery(context, gallery.id)
-                            cache.deleteRecursively()
-                            data.deleteRecursively()
-
-                            downloads.remove(gallery.id)
-
-                            if (mode == Mode.DOWNLOAD) {
-                                runOnUiThread {
-                                    cancelFetch()
-                                    clearGalleries()
-                                    fetchGalleries(query, sortMode)
-                                    loadBlocks()
-                                }
-                            }
-
-                            (adapter as GalleryBlockAdapter).completeFlag.put(gallery.id, false)
-                        }
-                        dialog.dismiss()
-                    }
-
-                    dialog.show()
+                    }.show()
 
                     true
                 }
@@ -721,6 +725,7 @@ class MainActivity : AppCompatActivity() {
                                         val text = next.findViewById<TextView>(R.id.text_next).apply {
                                             text = getString(R.string.main_move, currentPage+2)
                                         }
+
                                         if (absDist < 360) {
                                             next.layoutParams.height = (absDist/2).roundToInt()
                                             icon.layoutParams.height = (absDist/2).roundToInt()
@@ -728,8 +733,7 @@ class MainActivity : AppCompatActivity() {
                                             text.layoutParams.width = absDist.roundToInt()
 
                                             target = -1
-                                        }
-                                        else {
+                                        } else {
                                             next.layoutParams.height = 180
                                             icon.layoutParams.height = 180
                                             icon.rotation = 0f
@@ -792,7 +796,7 @@ class MainActivity : AppCompatActivity() {
                 s ?: return
 
                 if (s.any { it.isUpperCase() })
-                    s.replace(0, s.length, s.toString().toLowerCase())
+                    s.replace(0, s.length, s.toString().toLowerCase(Locale.getDefault()))
             }
         })
 
@@ -900,11 +904,10 @@ class MainActivity : AppCompatActivity() {
                     else
                         setImageResource(R.drawable.ic_star_empty)
 
+                    visibility = View.VISIBLE
                     rotation = 0f
                     isEnabled = true
 
-                    setColorFilter(ContextCompat.getColor(context, R.color.material_orange_500))
-
                     isClickable = true
                     setOnClickListener {
                         val favorites = Tags(json.parse(serializer, favoritesFile.readText()))
diff --git a/app/src/main/java/xyz/quaver/pupil/ui/ReaderActivity.kt b/app/src/main/java/xyz/quaver/pupil/ui/ReaderActivity.kt
index 3d3270ac..d88a7eef 100644
--- a/app/src/main/java/xyz/quaver/pupil/ui/ReaderActivity.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/ReaderActivity.kt
@@ -18,9 +18,11 @@
 
 package xyz.quaver.pupil.ui
 
+import android.Manifest
 import android.content.Intent
 import android.graphics.drawable.Animatable
 import android.graphics.drawable.Drawable
+import android.net.Uri
 import android.os.Bundle
 import android.view.*
 import androidx.appcompat.app.AlertDialog
@@ -31,6 +33,7 @@ import androidx.recyclerview.widget.PagerSnapHelper
 import androidx.recyclerview.widget.RecyclerView
 import androidx.vectordrawable.graphics.drawable.Animatable2Compat
 import androidx.vectordrawable.graphics.drawable.AnimatedVectorDrawableCompat
+import com.bumptech.glide.Glide
 import com.crashlytics.android.Crashlytics
 import com.google.android.material.snackbar.Snackbar
 import kotlinx.android.synthetic.main.activity_reader.*
@@ -46,6 +49,7 @@ import xyz.quaver.pupil.adapters.ReaderAdapter
 import xyz.quaver.pupil.util.GalleryDownloader
 import xyz.quaver.pupil.util.Histories
 import xyz.quaver.pupil.util.ItemClickSupport
+import xyz.quaver.pupil.util.hasPermission
 
 class ReaderActivity : AppCompatActivity() {
 
@@ -217,6 +221,23 @@ class ReaderActivity : AppCompatActivity() {
         }
     }
 
+    override fun onKeyDown(keyCode: Int, event: KeyEvent?): Boolean {
+        //currentPage is 1-based
+        return when(keyCode) {
+            KeyEvent.KEYCODE_VOLUME_UP -> {
+                (reader_recyclerview.layoutManager as LinearLayoutManager?)?.scrollToPositionWithOffset(currentPage-2, 0)
+
+                true
+            }
+            KeyEvent.KEYCODE_VOLUME_DOWN -> {
+                (reader_recyclerview.layoutManager as LinearLayoutManager?)?.scrollToPositionWithOffset(currentPage, 0)
+
+                true
+            }
+            else -> super.onKeyDown(keyCode, event)
+        }
+    }
+
     private fun initDownloader() {
         var d: GalleryDownloader? = GalleryDownloader.get(galleryID)
 
@@ -259,7 +280,12 @@ class ReaderActivity : AppCompatActivity() {
                 }
             }
             onErrorHandler = {
-                Snackbar.make(reader_layout, it.message ?: it.javaClass.name, Snackbar.LENGTH_INDEFINITE).show()
+                Snackbar
+                    .make(reader_layout, it.message ?: it.javaClass.name, Snackbar.LENGTH_INDEFINITE)
+                    .setAction(R.string.reader_help) { _ ->
+                        startActivity(Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.error_help))))
+                    }
+                    .show()
                 downloader.download = false
             }
             onCompleteHandler = {
@@ -307,7 +333,7 @@ class ReaderActivity : AppCompatActivity() {
 
     private fun initView() {
         with(reader_recyclerview) {
-            adapter = ReaderAdapter(images)
+            adapter = ReaderAdapter(Glide.with(this@ReaderActivity), galleryID, images)
 
             addOnScrollListener(object: RecyclerView.OnScrollListener() {
                 override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
@@ -337,7 +363,7 @@ class ReaderActivity : AppCompatActivity() {
                         scrollMode(false)
                         fullscreen(true)
                     } else {
-                        (reader_recyclerview.layoutManager as LinearLayoutManager?)?.scrollToPosition(currentPage)
+                        (reader_recyclerview.layoutManager as LinearLayoutManager?)?.scrollToPosition(currentPage) //Moves to next page because currentPage is 1-based indexing
                     }
                 }
         }
@@ -345,6 +371,17 @@ class ReaderActivity : AppCompatActivity() {
         with(reader_fab_download) {
             setImageResource(R.drawable.ic_download)
             setOnClickListener {
+
+                if (!this@ReaderActivity.hasPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
+                    AlertDialog.Builder(this@ReaderActivity).apply {
+                        setTitle(R.string.warning)
+                        setMessage(R.string.update_no_permission)
+                        setPositiveButton(android.R.string.ok) { _, _ -> }
+                    }.show()
+
+                    return@setOnClickListener
+                }
+
                 downloader.download = !downloader.download
 
                 if (!downloader.download)
diff --git a/app/src/main/java/xyz/quaver/pupil/ui/SettingsActivity.kt b/app/src/main/java/xyz/quaver/pupil/ui/SettingsActivity.kt
index 0d0bc35c..0e28613b 100644
--- a/app/src/main/java/xyz/quaver/pupil/ui/SettingsActivity.kt
+++ b/app/src/main/java/xyz/quaver/pupil/ui/SettingsActivity.kt
@@ -31,6 +31,7 @@ import android.widget.LinearLayout
 import android.widget.TextView
 import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.app.AppCompatActivity
+import androidx.appcompat.app.AppCompatDelegate
 import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
 import androidx.preference.PreferenceManager
@@ -338,6 +339,19 @@ class SettingsActivity : AppCompatActivity() {
                     true
                 }
             }
+
+            with(findPreference<Preference>("dark_mode")) {
+                this!!
+
+                onPreferenceChangeListener = Preference.OnPreferenceChangeListener { _, newValue ->
+                    AppCompatDelegate.setDefaultNightMode(when (newValue as Boolean) {
+                            true -> AppCompatDelegate.MODE_NIGHT_YES
+                            false -> AppCompatDelegate.MODE_NIGHT_NO
+                    })
+
+                    true
+                }
+            }
         }
     }
 
diff --git a/app/src/main/java/xyz/quaver/pupil/util/GalleryDownloader.kt b/app/src/main/java/xyz/quaver/pupil/util/GalleryDownloader.kt
index d78a565f..38725a09 100644
--- a/app/src/main/java/xyz/quaver/pupil/util/GalleryDownloader.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/GalleryDownloader.kt
@@ -27,6 +27,7 @@ import androidx.core.app.NotificationCompat
 import androidx.core.app.NotificationManagerCompat
 import androidx.core.app.TaskStackBuilder
 import androidx.preference.PreferenceManager
+import com.crashlytics.android.Crashlytics
 import kotlinx.coroutines.*
 import kotlinx.io.IOException
 import kotlinx.serialization.json.Json
@@ -62,16 +63,17 @@ class GalleryDownloader(
                 field = true
                 notificationManager.notify(galleryID, notificationBuilder.build())
 
-                val data = getCachedGallery(this, galleryID)
-                val cache = File(cacheDir, "imageCache/$galleryID")
+                if (reader?.isActive == false && downloadJob?.isActive != true) {
+                    val data = File(getDownloadDirectory(this), galleryID.toString())
+                    val cache = File(cacheDir, "imageCache/$galleryID")
 
-                if (File(cache, "images").exists() && !data.exists()) {
-                    cache.copyRecursively(data, true)
-                    cache.deleteRecursively()
-                }
+                    if (File(cache, "images").exists() && !data.exists()) {
+                        cache.copyRecursively(data, true)
+                        cache.deleteRecursively()
+                    }
 
-                if (reader?.isActive == false && downloadJob?.isActive != true)
                     field = false
+                }
 
                 downloads.add(galleryID)
             } else {
@@ -110,6 +112,12 @@ class GalleryDownloader(
                 //Check cache
                 val cache = File(getCachedGallery(this@GalleryDownloader, galleryID), "reader.json")
 
+                try {
+                    json.parse(serializer, cache.readText())
+                } catch(e: Exception) {
+                    cache.delete()
+                }
+
                 if (cache.exists()) {
                     val cached = json.parse(serializer, cache.readText())
 
@@ -128,14 +136,11 @@ class GalleryDownloader(
                 //Cache doesn't exist. Load from internet
                 val reader = when {
                     useHiyobi -> {
-                        xyz.quaver.hiyobi.getReader(galleryID).let {
-                            when {
-                                it.readerItems.isEmpty() -> {
-                                    useHiyobi = false
-                                    getReader(galleryID)
-                                }
-                                else -> it
-                            }
+                        try {
+                            xyz.quaver.hiyobi.getReader(galleryID)
+                        } catch(e: Exception) {
+                            useHiyobi = false
+                            getReader(galleryID)
                         }
                     }
                     else -> {
@@ -153,6 +158,7 @@ class GalleryDownloader(
 
                 reader
             } catch (e: Exception) {
+                Crashlytics.logException(e)
                 Reader("", listOf())
             }
         }
@@ -164,6 +170,8 @@ class GalleryDownloader(
         downloadJob = CoroutineScope(Dispatchers.Default).launch {
             val reader = reader!!.await()
 
+            notificationBuilder.setContentTitle(reader.title)
+
             if (reader.readerItems.isEmpty()) {
                 onErrorHandler?.invoke(IOException(getString(R.string.unable_to_connect)))
                 return@launch
@@ -216,7 +224,7 @@ class GalleryDownloader(
                                 notificationManager.notify(galleryID, notificationBuilder.build())
                             }
 
-                        cache.absolutePath
+                        "images/$name.$ext"
                     }
                 }.forEach {
                     list.add(it.await())
@@ -307,16 +315,11 @@ class GalleryDownloader(
         notificationBuilder = NotificationCompat.Builder(this, "download").apply {
             setContentTitle(getString(R.string.reader_loading))
             setContentText(getString(R.string.reader_notification_text))
-            setSmallIcon(R.drawable.ic_download)
+            setSmallIcon(android.R.drawable.stat_sys_download)
             setContentIntent(pendingIntent)
             setProgress(0, 0, true)
             priority = NotificationCompat.PRIORITY_LOW
         }
-
-        CoroutineScope(Dispatchers.Default).launch {
-            while (reader == null) ;
-            notificationBuilder.setContentTitle(reader.await().title)
-        }
     }
 
 }
\ No newline at end of file
diff --git a/app/src/main/java/xyz/quaver/pupil/util/lock.kt b/app/src/main/java/xyz/quaver/pupil/util/lock.kt
index 15970b02..cba085c4 100644
--- a/app/src/main/java/xyz/quaver/pupil/util/lock.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/lock.kt
@@ -112,10 +112,12 @@ class LockManager(base: Context): ContextWrapper(base) {
         }
     }
 
-    fun empty(): Boolean {
+    fun isEmpty(): Boolean {
         return locks.isNullOrEmpty()
     }
 
+    fun isNotEmpty(): Boolean = !isEmpty()
+
     fun contains(type: Lock.Type): Boolean {
         return locks?.any { it.type == type } ?: false
     }
diff --git a/app/src/main/java/xyz/quaver/pupil/util/misc.kt b/app/src/main/java/xyz/quaver/pupil/util/misc.kt
new file mode 100644
index 00000000..a8b1dbad
--- /dev/null
+++ b/app/src/main/java/xyz/quaver/pupil/util/misc.kt
@@ -0,0 +1,35 @@
+/*
+ *     Pupil, Hitomi.la viewer for Android
+ *     Copyright (C) 2019  tom5079
+ *
+ *     This program is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ *
+ *     This program is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package xyz.quaver.pupil.util
+
+import android.content.Context
+import android.content.pm.PackageManager
+import androidx.core.content.ContextCompat
+
+fun Context.hasPermission(permission: String) =
+    ContextCompat.checkSelfPermission(this, permission) == PackageManager.PERMISSION_GRANTED
+
+fun String.wordCapitalize() : String {
+    val result = ArrayList<String>()
+
+    for (word in this.split(" "))
+        result.add(word.capitalize())
+
+    return result.joinToString(" ")
+}
\ No newline at end of file
diff --git a/app/src/main/java/xyz/quaver/pupil/util/update.kt b/app/src/main/java/xyz/quaver/pupil/util/update.kt
index fec736d6..6acfaf75 100644
--- a/app/src/main/java/xyz/quaver/pupil/util/update.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/update.kt
@@ -40,19 +40,25 @@ fun checkUpdate(url: String) : JsonObject? {
 
     return releases.firstOrNull {
         if (BuildConfig.PRERELEASE) {
-            BuildConfig.VERSION_NAME != it.jsonObject["tag_name"]?.content
+            true
         } else {
-            it.jsonObject["prerelease"]?.boolean == false &&
-                    BuildConfig.VERSION_NAME != (it.jsonObject["tag_name"]?.content ?: "")
+            it.jsonObject["prerelease"]?.boolean == false
         }
-    }?.jsonObject
+    }?.let {
+        if (it.jsonObject["tag_name"]?.content == BuildConfig.VERSION_NAME)
+            null
+        else
+            it.jsonObject
+    }
 }
 
 fun getApkUrl(releases: JsonObject) : Pair<String?, String?>? {
-    releases["assets"]?.jsonArray?.forEach {
-        if (Regex("Pupil-v(\\d+\\.)+\\d+\\.apk").matches(it.jsonObject["name"]?.content ?: ""))
-            return Pair(it.jsonObject["browser_download_url"]?.content, it.jsonObject["name"]?.content)
+    return releases["assets"]?.jsonArray?.firstOrNull {
+        Regex("Pupil-v(\\d+\\.)+\\d+\\.apk").matches(it.jsonObject["name"]?.content ?: "")
+    }.let {
+        if (it == null)
+            null
+        else
+            Pair(it.jsonObject["browser_download_url"]?.content, it.jsonObject["name"]?.content)
     }
-
-    return null
 }
\ No newline at end of file
diff --git a/app/src/main/res/drawable-anydpi/ic_email.xml b/app/src/main/res/drawable-anydpi/ic_email.xml
deleted file mode 100644
index 4163eb94..00000000
--- a/app/src/main/res/drawable-anydpi/ic_email.xml
+++ /dev/null
@@ -1,10 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24"
-    android:tint="#333333">
-    <path
-        android:fillColor="#FF000000"
-        android:pathData="M20,4L4,4c-1.1,0 -1.99,0.9 -1.99,2L2,18c0,1.1 0.9,2 2,2h16c1.1,0 2,-0.9 2,-2L22,6c0,-1.1 -0.9,-2 -2,-2zM20,8l-8,5 -8,-5L4,6l8,5 8,-5v2z"/>
-</vector>
diff --git a/app/src/main/res/drawable-anydpi/ic_expand.xml b/app/src/main/res/drawable-anydpi/ic_expand.xml
deleted file mode 100644
index 46ffbc0f..00000000
--- a/app/src/main/res/drawable-anydpi/ic_expand.xml
+++ /dev/null
@@ -1,10 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24"
-    android:tint="#333333">
-    <path
-        android:fillColor="#FF000000"
-        android:pathData="M16.59,8.59L12,13.17 7.41,8.59 6,10l6,6 6,-6z"/>
-</vector>
diff --git a/app/src/main/res/drawable-anydpi/ic_fullscreen.xml b/app/src/main/res/drawable-anydpi/ic_fullscreen.xml
deleted file mode 100644
index f9831623..00000000
--- a/app/src/main/res/drawable-anydpi/ic_fullscreen.xml
+++ /dev/null
@@ -1,10 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24"
-    android:tint="#FFFFFF">
-    <path
-        android:fillColor="#FF000000"
-        android:pathData="M7,14L5,14v5h5v-2L7,17v-3zM5,10h2L7,7h3L10,5L5,5v5zM17,17h-3v2h5v-5h-2v3zM14,5v2h3v3h2L19,5h-5z"/>
-</vector>
diff --git a/app/src/main/res/drawable-anydpi/ic_help.xml b/app/src/main/res/drawable-anydpi/ic_help.xml
deleted file mode 100644
index 785b2478..00000000
--- a/app/src/main/res/drawable-anydpi/ic_help.xml
+++ /dev/null
@@ -1,10 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24"
-    android:tint="#333333">
-    <path
-        android:fillColor="#FF000000"
-        android:pathData="M12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM13,19h-2v-2h2v2zM15.07,11.25l-0.9,0.92C13.45,12.9 13,13.5 13,15h-2v-0.5c0,-1.1 0.45,-2.1 1.17,-2.83l1.24,-1.26c0.37,-0.36 0.59,-0.86 0.59,-1.41 0,-1.1 -0.9,-2 -2,-2s-2,0.9 -2,2L8,9c0,-2.21 1.79,-4 4,-4s4,1.79 4,4c0,0.88 -0.36,1.68 -0.93,2.25z"/>
-</vector>
diff --git a/app/src/main/res/drawable-anydpi/ic_history.xml b/app/src/main/res/drawable-anydpi/ic_history.xml
deleted file mode 100644
index e5e6c6c8..00000000
--- a/app/src/main/res/drawable-anydpi/ic_history.xml
+++ /dev/null
@@ -1,10 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24"
-    android:tint="#333333">
-    <path
-        android:fillColor="#FF000000"
-        android:pathData="M13,3c-4.97,0 -9,4.03 -9,9L1,12l3.89,3.89 0.07,0.14L9,12L6,12c0,-3.87 3.13,-7 7,-7s7,3.13 7,7 -3.13,7 -7,7c-1.93,0 -3.68,-0.79 -4.94,-2.06l-1.42,1.42C8.27,19.99 10.51,21 13,21c4.97,0 9,-4.03 9,-9s-4.03,-9 -9,-9zM12,8v5l4.28,2.54 0.72,-1.21 -3.5,-2.08L13.5,8L12,8z"/>
-</vector>
diff --git a/app/src/main/res/drawable-anydpi/ic_home.xml b/app/src/main/res/drawable-anydpi/ic_home.xml
deleted file mode 100644
index 08ebbdf2..00000000
--- a/app/src/main/res/drawable-anydpi/ic_home.xml
+++ /dev/null
@@ -1,10 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24"
-    android:tint="#333333">
-    <path
-        android:fillColor="#FF000000"
-        android:pathData="M10,20v-6h4v6h5v-8h3L12,3 2,12h3v8z"/>
-</vector>
diff --git a/app/src/main/res/drawable-anydpi/ic_placeholder.xml b/app/src/main/res/drawable-anydpi/ic_placeholder.xml
deleted file mode 100644
index 7b74d4b6..00000000
--- a/app/src/main/res/drawable-anydpi/ic_placeholder.xml
+++ /dev/null
@@ -1,10 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24"
-    android:tint="#333333">
-    <path
-        android:fillColor="#FF000000"
-        android:pathData="M21,5v6.59l-3,-3.01 -4,4.01 -4,-4 -4,4 -3,-3.01L3,5c0,-1.1 0.9,-2 2,-2h14c1.1,0 2,0.9 2,2zM18,11.42l3,3.01L21,19c0,1.1 -0.9,2 -2,2L5,21c-1.1,0 -2,-0.9 -2,-2v-6.58l3,2.99 4,-4 4,4 4,-3.99z"/>
-</vector>
diff --git a/app/src/main/res/drawable-anydpi/ic_search.xml b/app/src/main/res/drawable-anydpi/ic_search.xml
deleted file mode 100644
index 4da90631..00000000
--- a/app/src/main/res/drawable-anydpi/ic_search.xml
+++ /dev/null
@@ -1,10 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24"
-    android:tint="#FFFFFF">
-    <path
-        android:fillColor="#FF000000"
-        android:pathData="M15.5,14h-0.79l-0.28,-0.27C15.41,12.59 16,11.11 16,9.5 16,5.91 13.09,3 9.5,3S3,5.91 3,9.5 5.91,16 9.5,16c1.61,0 3.09,-0.59 4.23,-1.57l0.27,0.28v0.79l5,4.99L20.49,19l-4.99,-5zM9.5,14C7.01,14 5,11.99 5,9.5S7.01,5 9.5,5 14,7.01 14,9.5 11.99,14 9.5,14z"/>
-</vector>
diff --git a/app/src/main/res/drawable-anydpi/ic_settings.xml b/app/src/main/res/drawable-anydpi/ic_settings.xml
deleted file mode 100644
index 994eaacb..00000000
--- a/app/src/main/res/drawable-anydpi/ic_settings.xml
+++ /dev/null
@@ -1,10 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24"
-    android:tint="#FFFFFF">
-    <path
-        android:fillColor="#FF000000"
-        android:pathData="M19.1,12.9a2.8,2.8 0,0 0,0.1 -0.9,2.8 2.8,0 0,0 -0.1,-0.9l2.1,-1.6a0.7,0.7 0,0 0,0.1 -0.6L19.4,5.5a0.7,0.7 0,0 0,-0.6 -0.2l-2.4,1a6.5,6.5 0,0 0,-1.6 -0.9l-0.4,-2.6a0.5,0.5 0,0 0,-0.5 -0.4H10.1a0.5,0.5 0,0 0,-0.5 0.4L9.3,5.4a5.6,5.6 0,0 0,-1.7 0.9l-2.4,-1a0.4,0.4 0,0 0,-0.5 0.2l-2,3.4c-0.1,0.2 0,0.4 0.2,0.6l2,1.6a2.8,2.8 0,0 0,-0.1 0.9,2.8 2.8,0 0,0 0.1,0.9L2.8,14.5a0.7,0.7 0,0 0,-0.1 0.6l1.9,3.4a0.7,0.7 0,0 0,0.6 0.2l2.4,-1a6.5,6.5 0,0 0,1.6 0.9l0.4,2.6a0.5,0.5 0,0 0,0.5 0.4h3.8a0.5,0.5 0,0 0,0.5 -0.4l0.3,-2.6a5.6,5.6 0,0 0,1.7 -0.9l2.4,1a0.4,0.4 0,0 0,0.5 -0.2l2,-3.4c0.1,-0.2 0,-0.4 -0.2,-0.6ZM12,15.6A3.6,3.6 0,1 1,15.6 12,3.6 3.6,0 0,1 12,15.6Z"/>
-</vector>
diff --git a/app/src/main/res/drawable/arrow_right.xml b/app/src/main/res/drawable/arrow_right.xml
new file mode 100644
index 00000000..c1a08d8a
--- /dev/null
+++ b/app/src/main/res/drawable/arrow_right.xml
@@ -0,0 +1,8 @@
+<!-- drawable/arrow_right.xml -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:height="24dp"
+    android:width="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path android:fillColor="#fff" android:pathData="M4,11V13H16L10.5,18.5L11.92,19.92L19.84,12L11.92,4.08L10.5,5.5L16,11H4Z" />
+</vector>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/avd_star.xml b/app/src/main/res/drawable/avd_star.xml
index 6ae49f20..08381227 100644
--- a/app/src/main/res/drawable/avd_star.xml
+++ b/app/src/main/res/drawable/avd_star.xml
@@ -13,14 +13,14 @@
             <path
                 android:name="path"
                 android:pathData="M 12 15.39 L 8.24 17.66 L 9.23 13.38 L 5.91 10.5 L 10.29 10.13 L 12 6.09 L 13.71 10.13 L 18.09 10.5 L 14.77 13.38 L 15.76 17.66 M 22 9.24 L 14.81 8.63 L 12 2 L 9.19 8.63 L 2 9.24 L 7.45 13.97 L 5.82 21 L 12 17.27 L 18.18 21 L 16.54 13.97 L 22 9.24 Z"
-                android:fillColor="#000"/>
+                android:fillColor="@color/material_orange_500"/>
             <clip-path
                 android:name="clip"
                 android:pathData="M 2 21 L 2 21 L 22 21 L 22 21 Z"/>
             <path
                 android:name="path_1"
                 android:pathData="M 12 17.27 L 18.18 21 L 16.54 13.97 L 22 9.24 L 14.81 8.62 L 12 2 L 9.19 8.62 L 2 9.24 L 7.45 13.97 L 5.82 21 L 12 17.27 Z"
-                android:fillColor="#000"/>
+                android:fillColor="@color/material_orange_500"/>
         </vector>
     </aapt:attr>
     <target android:name="clip">
diff --git a/app/src/main/res/drawable-anydpi/ic_downloading.xml b/app/src/main/res/drawable/ic_downloading.xml
similarity index 72%
rename from app/src/main/res/drawable-anydpi/ic_downloading.xml
rename to app/src/main/res/drawable/ic_downloading.xml
index ac96e761..8e655e40 100644
--- a/app/src/main/res/drawable-anydpi/ic_downloading.xml
+++ b/app/src/main/res/drawable/ic_downloading.xml
@@ -1,3 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
 <animated-vector
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
@@ -52,4 +71,4 @@
             </set>
         </aapt:attr>
     </target>
-</animated-vector>
+</animated-vector>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/ic_star_empty.xml b/app/src/main/res/drawable/ic_star_empty.xml
index 2231c7f8..028ac629 100644
--- a/app/src/main/res/drawable/ic_star_empty.xml
+++ b/app/src/main/res/drawable/ic_star_empty.xml
@@ -1,4 +1,4 @@
 <vector android:height="24dp" android:width="24dp"
     android:viewportHeight="24.0" android:viewportWidth="24.0" xmlns:android="http://schemas.android.com/apk/res/android">
-    <path android:fillColor="#000" android:pathData="M 12 15.39 L 8.24 17.66 L 9.23 13.38 L 5.91 10.5 L 10.29 10.13 L 12 6.09 L 13.71 10.13 L 18.09 10.5 L 14.77 13.38 L 15.76 17.66 M 22 9.24 L 14.81 8.63 L 12 2 L 9.19 8.63 L 2 9.24 L 7.45 13.97 L 5.82 21 L 12 17.27 L 18.18 21 L 16.54 13.97 L 22 9.24 Z"/>
+    <path android:fillColor="@color/material_orange_500" android:pathData="M 12 15.39 L 8.24 17.66 L 9.23 13.38 L 5.91 10.5 L 10.29 10.13 L 12 6.09 L 13.71 10.13 L 18.09 10.5 L 14.77 13.38 L 15.76 17.66 M 22 9.24 L 14.81 8.63 L 12 2 L 9.19 8.63 L 2 9.24 L 7.45 13.97 L 5.82 21 L 12 17.27 L 18.18 21 L 16.54 13.97 L 22 9.24 Z"/>
 </vector>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/ic_star_filled.xml b/app/src/main/res/drawable/ic_star_filled.xml
index ae9a8278..c2614e6d 100644
--- a/app/src/main/res/drawable/ic_star_filled.xml
+++ b/app/src/main/res/drawable/ic_star_filled.xml
@@ -1,4 +1,4 @@
 <vector android:height="24dp" android:width="24dp"
     android:viewportHeight="24.0" android:viewportWidth="24.0" xmlns:android="http://schemas.android.com/apk/res/android">
-    <path android:fillColor="#000" android:pathData="M 12 17.27 L 18.18 21 L 16.54 13.97 L 22 9.24 L 14.81 8.62 L 12 2 L 9.19 8.62 L 2 9.24 L 7.45 13.97 L 5.82 21 L 12 17.27 Z"/>
+    <path android:fillColor="@color/material_orange_500" android:pathData="M 12 17.27 L 18.18 21 L 16.54 13.97 L 22 9.24 L 14.81 8.62 L 12 2 L 9.19 8.62 L 2 9.24 L 7.45 13.97 L 5.82 21 L 12 17.27 Z"/>
 </vector>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_lock.xml b/app/src/main/res/layout/activity_lock.xml
index b570d386..4aab2840 100644
--- a/app/src/main/res/layout/activity_lock.xml
+++ b/app/src/main/res/layout/activity_lock.xml
@@ -1,4 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 0aec4ddd..dc987544 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -1,4 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
 <androidx.drawerlayout.widget.DrawerLayout
 	xmlns:android="http://schemas.android.com/apk/res/android"
 	xmlns:app="http://schemas.android.com/apk/res-auto"
diff --git a/app/src/main/res/layout/activity_main_content.xml b/app/src/main/res/layout/activity_main_content.xml
index 38049787..3041a890 100644
--- a/app/src/main/res/layout/activity_main_content.xml
+++ b/app/src/main/res/layout/activity_main_content.xml
@@ -1,4 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
 <RelativeLayout
     android:id="@+id/main_layout"
     xmlns:android="http://schemas.android.com/apk/res/android"
@@ -86,6 +104,7 @@
         android:id="@+id/main_searchview"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
+        app:floatingSearch_backgroundColor="?attr/colorSurface"
         app:floatingSearch_searchBarMarginLeft="8dp"
         app:floatingSearch_searchBarMarginRight="8dp"
         app:floatingSearch_searchBarMarginTop="8dp"
diff --git a/app/src/main/res/layout/activity_reader.xml b/app/src/main/res/layout/activity_reader.xml
index d34d926c..3c79bab3 100644
--- a/app/src/main/res/layout/activity_reader.xml
+++ b/app/src/main/res/layout/activity_reader.xml
@@ -1,4 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
 <androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@+id/reader_layout"
     xmlns:app="http://schemas.android.com/apk/res-auto"
diff --git a/app/src/main/res/layout/dialog_default_query.xml b/app/src/main/res/layout/dialog_default_query.xml
index ca1bd29d..7e85a5d0 100644
--- a/app/src/main/res/layout/dialog_default_query.xml
+++ b/app/src/main/res/layout/dialog_default_query.xml
@@ -1,4 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
diff --git a/app/src/main/res/layout/dialog_galleryblock.xml b/app/src/main/res/layout/dialog_galleryblock.xml
index 3c9bc82a..a7925e0b 100644
--- a/app/src/main/res/layout/dialog_galleryblock.xml
+++ b/app/src/main/res/layout/dialog_galleryblock.xml
@@ -1,23 +1,132 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/gallery_layout"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:padding="16dp">
+    android:orientation="vertical">
 
-    <Button
-        android:id="@+id/main_dialog_download"
-        style="?borderlessButtonStyle"
+    <com.google.android.material.appbar.AppBarLayout
+        android:id="@+id/gallery_toolbar"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        app:layout_constraintTop_toTopOf="parent"/>
+        android:layout_height="wrap_content">
 
-    <Button
-        android:id="@+id/main_dialog_delete"
-        style="?borderlessButtonStyle"
+        <com.google.android.material.appbar.CollapsingToolbarLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            app:layout_scrollFlags="scroll|exitUntilCollapsed">
+
+            <androidx.constraintlayout.widget.ConstraintLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:padding="8dp">
+
+                <ImageView
+                    android:id="@+id/gallery_thumbnail"
+                    android:layout_width="150dp"
+                    android:layout_height="wrap_content"
+                    android:adjustViewBounds="true"
+                    app:layout_constraintTop_toTopOf="parent"
+                    app:layout_constraintBottom_toBottomOf="parent"
+                    app:layout_constraintLeft_toLeftOf="parent"
+                    app:layout_constraintRight_toLeftOf="@id/gallery_title"/>
+
+                <TextView
+                    android:id="@+id/gallery_title"
+                    style="@style/TextAppearance.AppCompat.Headline"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    app:layout_constraintTop_toTopOf="parent"
+                    app:layout_constraintLeft_toRightOf="@id/gallery_thumbnail"
+                    app:layout_constraintRight_toRightOf="parent"
+                    android:layout_marginLeft="8dp"
+                    android:layout_marginStart="8dp"/>
+
+                <TextView
+                    style="@style/TextAppearance.AppCompat.Medium"
+                    android:id="@+id/gallery_artist"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    app:layout_constraintTop_toBottomOf="@id/gallery_title"
+                    app:layout_constraintLeft_toRightOf="@id/gallery_thumbnail"
+                    app:layout_constraintRight_toRightOf="parent"
+                    android:layout_marginLeft="8dp"
+                    android:layout_marginStart="8dp"/>
+
+                <View
+                    android:id="@+id/gallery_padding"
+                    android:layout_width="match_parent"
+                    android:layout_height="0dp"
+                    app:layout_constraintTop_toBottomOf="@id/gallery_artist"
+                    app:layout_constraintBottom_toTopOf="@id/gallery_type"/>
+
+                <com.google.android.material.chip.Chip
+                    android:id="@+id/gallery_type"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    app:layout_constraintBottom_toBottomOf="parent"
+                    app:layout_constraintLeft_toRightOf="@id/gallery_thumbnail"
+                    android:layout_marginLeft="8dp"
+                    android:layout_marginStart="8dp"/>
+
+            </androidx.constraintlayout.widget.ConstraintLayout>
+
+        </com.google.android.material.appbar.CollapsingToolbarLayout>
+
+    </com.google.android.material.appbar.AppBarLayout>
+
+    <androidx.core.widget.NestedScrollView
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/main_dialog_delete"
-        app:layout_constraintTop_toBottomOf="@id/main_dialog_download"/>
+        android:layout_height="match_parent"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior">
 
-</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
+        <LinearLayout
+            android:id="@+id/gallery_contents"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:orientation="vertical"/>
+
+    </androidx.core.widget.NestedScrollView>
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <ProgressBar
+            android:id="@+id/gallery_progressbar"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            app:layout_constraintLeft_toLeftOf="parent"
+            app:layout_constraintRight_toRightOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintBottom_toBottomOf="parent"/>
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
+        android:id="@+id/gallery_fab"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_margin="16dp"
+        app:layout_anchor="@id/gallery_toolbar"
+        app:layout_anchorGravity="bottom|end"/>
+
+</androidx.coordinatorlayout.widget.CoordinatorLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/dialog_numberpicker.xml b/app/src/main/res/layout/dialog_numberpicker.xml
index 943ab6ac..391fe7d1 100644
--- a/app/src/main/res/layout/dialog_numberpicker.xml
+++ b/app/src/main/res/layout/dialog_numberpicker.xml
@@ -1,4 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
diff --git a/app/src/main/res/layout/fragment_pattern_lock.xml b/app/src/main/res/layout/fragment_pattern_lock.xml
index 6ed146b3..c5b05c51 100644
--- a/app/src/main/res/layout/fragment_pattern_lock.xml
+++ b/app/src/main/res/layout/fragment_pattern_lock.xml
@@ -1,4 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
 <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
diff --git a/app/src/main/res/layout/gallery_details.xml b/app/src/main/res/layout/gallery_details.xml
new file mode 100644
index 00000000..3e7d4d21
--- /dev/null
+++ b/app/src/main/res/layout/gallery_details.xml
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:padding="8dp">
+
+    <TextView
+        android:id="@+id/gallery_details"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        style="@style/TextAppearance.MaterialComponents.Body1"
+        android:textColor="@color/colorAccent"/>
+
+    <LinearLayout
+        android:id="@+id/gallery_details_contents"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"/>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/item_gallery_details.xml b/app/src/main/res/layout/item_gallery_details.xml
new file mode 100644
index 00000000..94223858
--- /dev/null
+++ b/app/src/main/res/layout/item_gallery_details.xml
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:orientation="vertical"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:padding="8dp">
+
+    <TextView
+        style="@style/TextAppearance.MaterialComponents.Body2"
+        android:id="@+id/gallery_details_type"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:paddingBottom="8dp"/>
+
+    <com.google.android.material.chip.ChipGroup
+        android:id="@+id/gallery_details_tags"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        app:chipSpacingVertical="8dp"/>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/item_gallery_thumbnails.xml b/app/src/main/res/layout/item_gallery_thumbnails.xml
new file mode 100644
index 00000000..2c97c88d
--- /dev/null
+++ b/app/src/main/res/layout/item_gallery_thumbnails.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:columnCount="3"/>
\ No newline at end of file
diff --git a/app/src/main/res/layout/item_galleryblock.xml b/app/src/main/res/layout/item_galleryblock.xml
index 7fbe3d7d..5a7f0094 100644
--- a/app/src/main/res/layout/item_galleryblock.xml
+++ b/app/src/main/res/layout/item_galleryblock.xml
@@ -1,4 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
 <androidx.cardview.widget.CardView
 	xmlns:android="http://schemas.android.com/apk/res/android"
 	xmlns:app="http://schemas.android.com/apk/res-auto"
@@ -69,8 +87,6 @@
 				android:layout_height="wrap_content"
 				android:layout_marginStart="8dp"
 				android:layout_marginLeft="8dp"
-				android:clickable="true"
-				android:focusable="true"
 				app:layout_constraintLeft_toRightOf="@id/galleryblock_thumbnail"
 				app:layout_constraintRight_toRightOf="parent"
 				app:layout_constraintTop_toBottomOf="@id/galleryblock_title"/>
@@ -81,8 +97,6 @@
 				android:layout_height="wrap_content"
 				android:layout_marginStart="8dp"
 				android:layout_marginLeft="8dp"
-				android:clickable="true"
-				android:focusable="true"
 				app:layout_constraintTop_toBottomOf="@id/galleryblock_artist"
 				app:layout_constraintStart_toEndOf="@id/galleryblock_thumbnail"
 				app:layout_constraintEnd_toEndOf="parent"/>
@@ -93,8 +107,6 @@
 				android:layout_height="wrap_content"
 				android:layout_marginStart="8dp"
 				android:layout_marginLeft="8dp"
-				android:clickable="true"
-				android:focusable="true"
 				app:layout_constraintTop_toBottomOf="@id/galleryblock_series"
 				app:layout_constraintStart_toEndOf="@id/galleryblock_thumbnail" />
 
@@ -105,8 +117,6 @@
 				android:layout_marginStart="8dp"
 				android:layout_marginLeft="8dp"
 				android:layout_marginBottom="8dp"
-				android:clickable="true"
-				android:focusable="true"
 				app:layout_constraintTop_toBottomOf="@id/galleryblock_type"
 				app:layout_constraintBottom_toTopOf="@id/galleryblock_padding"
 				app:layout_constraintStart_toEndOf="@id/galleryblock_thumbnail" />
@@ -127,6 +137,7 @@
 				android:layout_marginStart="8dp"
 				android:layout_marginTop="16dp"
 				android:layout_marginBottom="16dp"
+				app:chipSpacing="2dp"
 				app:layout_constraintTop_toBottomOf="@id/galleryblock_padding"
 				app:layout_constraintLeft_toRightOf="@id/galleryblock_thumbnail"
 				app:layout_constraintRight_toRightOf="parent"
@@ -163,8 +174,7 @@
 				android:contentDescription="@string/app_name"
 				android:layout_width="32dp"
 				android:layout_height="32dp"
-				app:srcCompat="@drawable/ic_star_empty"
-				app:backgroundTint="@color/material_orange_500"/>
+				app:srcCompat="@drawable/ic_star_empty"/>
 
 		</LinearLayout>
 
diff --git a/app/src/main/res/layout/item_next.xml b/app/src/main/res/layout/item_next.xml
index 4b647b6c..5d48f44d 100644
--- a/app/src/main/res/layout/item_next.xml
+++ b/app/src/main/res/layout/item_next.xml
@@ -1,4 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
diff --git a/app/src/main/res/layout/item_prev.xml b/app/src/main/res/layout/item_prev.xml
index 60299e63..1030a900 100644
--- a/app/src/main/res/layout/item_prev.xml
+++ b/app/src/main/res/layout/item_prev.xml
@@ -1,4 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
diff --git a/app/src/main/res/layout/item_progressbar.xml b/app/src/main/res/layout/item_progressbar.xml
index 0488c59c..bb03c13d 100644
--- a/app/src/main/res/layout/item_progressbar.xml
+++ b/app/src/main/res/layout/item_progressbar.xml
@@ -1,4 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical"
 	android:layout_width="match_parent" android:layout_height="wrap_content">
 
diff --git a/app/src/main/res/layout/item_reader.xml b/app/src/main/res/layout/item_reader.xml
index eb9909bd..39b050a8 100644
--- a/app/src/main/res/layout/item_reader.xml
+++ b/app/src/main/res/layout/item_reader.xml
@@ -1,4 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
 <ImageView xmlns:android="http://schemas.android.com/apk/res/android"
     android:contentDescription="@string/reader_imageview_description"
     android:layout_width="match_parent"
diff --git a/app/src/main/res/layout/nav_header_main.xml b/app/src/main/res/layout/nav_header_main.xml
index d801cf79..05a58114 100644
--- a/app/src/main/res/layout/nav_header_main.xml
+++ b/app/src/main/res/layout/nav_header_main.xml
@@ -1,4 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
 <ImageView
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
diff --git a/app/src/main/res/layout/settings_activity.xml b/app/src/main/res/layout/settings_activity.xml
index cd820e81..873052ab 100644
--- a/app/src/main/res/layout/settings_activity.xml
+++ b/app/src/main/res/layout/settings_activity.xml
@@ -1,3 +1,21 @@
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
 <LinearLayout
 		xmlns:android="http://schemas.android.com/apk/res/android"
 		android:layout_width="match_parent"
diff --git a/app/src/main/res/layout/tag_chip.xml b/app/src/main/res/layout/tag_chip.xml
deleted file mode 100644
index 4a4fcf1f..00000000
--- a/app/src/main/res/layout/tag_chip.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<com.google.android.material.chip.Chip
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:layout_width="wrap_content"
-    android:layout_height="24dp"
-    app:chipIconSize="16dp"
-    app:chipStartPadding="8dp"
-    app:chipCornerRadius="100dp"/>
\ No newline at end of file
diff --git a/app/src/main/res/menu/activity_main_drawer.xml b/app/src/main/res/menu/activity_main_drawer.xml
index 36ce34a9..005695e1 100644
--- a/app/src/main/res/menu/activity_main_drawer.xml
+++ b/app/src/main/res/menu/activity_main_drawer.xml
@@ -1,4 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
 <menu xmlns:android="http://schemas.android.com/apk/res/android">
 
     <group android:checkableBehavior="single">
diff --git a/app/src/main/res/menu/gallery.xml b/app/src/main/res/menu/gallery.xml
new file mode 100644
index 00000000..148a501c
--- /dev/null
+++ b/app/src/main/res/menu/gallery.xml
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <item
+        android:id="@+id/gallery_favorite"
+        android:icon="@drawable/ic_star_empty"
+        android:title=""
+        app:showAsAction="ifRoom"/>
+
+    <item
+        android:id="@+id/gallery_download"
+        android:icon="@drawable/ic_download"
+        android:title=""
+        app:showAsAction="always"/>
+
+</menu>
\ No newline at end of file
diff --git a/app/src/main/res/menu/main.xml b/app/src/main/res/menu/main.xml
index b94c8378..9bbdd253 100644
--- a/app/src/main/res/menu/main.xml
+++ b/app/src/main/res/menu/main.xml
@@ -1,4 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
 	xmlns:app="http://schemas.android.com/apk/res-auto">
 
diff --git a/app/src/main/res/menu/reader.xml b/app/src/main/res/menu/reader.xml
index 4cd3ad30..e6b7c4b7 100644
--- a/app/src/main/res/menu/reader.xml
+++ b/app/src/main/res/menu/reader.xml
@@ -1,10 +1,27 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2019  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto">
 
     <item android:id="@+id/reader_menu_favorite"
         android:title=""
-        android:iconTint="@color/material_orange_500"
         android:icon="@drawable/avd_star"
         app:showAsAction="always"/>
 
diff --git a/app/src/main/res/values-ja/strings.xml b/app/src/main/res/values-ja/strings.xml
index f93c53f9..f9356dd4 100644
--- a/app/src/main/res/values-ja/strings.xml
+++ b/app/src/main/res/values-ja/strings.xml
@@ -70,7 +70,7 @@
     <string name="settings_app_lock">アプリロック</string>
     <string name="settings_app_lock_type">アップロックの種類</string>
     <string name="settings_app_version_title">バージョン</string>
-    <string name="settings_lock_biomatrics">生体認識</string>
+    <string name="settings_lock_biometrics">生体認識</string>
     <string name="settings_lock_confirm">ロック確認のためもう一回入力してください。</string>
     <string name="settings_lock_enabled">有効</string>
     <string name="settings_lock_fingerprint">指紋</string>
@@ -83,4 +83,23 @@
     <string name="main_menu_sort">ソート</string>
     <string name="main_menu_sort_newest">投稿日時順</string>
     <string name="main_menu_sort_popular">人気順</string>
+    <string name="update_failed">アップデートに失敗しました</string>
+    <string name="update_failed_message">マニュアルインストールが必要です。APKファイルは</string>
+    <string name="ignore_update">無視</string>
+    <string name="lock_corrupted">ロックファイルが破損されています。Pupilを再再インストールしてください。</string>
+    <string name="update_no_permission">権限がないため自動アップデートを行えません。ホームページで直接ダウンロードしてください。</string>
+    <string name="settings_dark_mode_title">ダークモード</string>
+    <string name="settings_dark_mode_summary">夜にシコりたい方々へ</string>
+    <string name="gallery_details">ギャラリー情報</string>
+    <string name="gallery_artists">アーティスト</string>
+    <string name="gallery_characters">キャラクター</string>
+    <string name="gallery_groups">グループ</string>
+    <string name="gallery_language">言語</string>
+    <string name="gallery_series">シリーズ</string>
+    <string name="gallery_tags">タグ</string>
+    <string name="gallery_thumbnails">サムネイル</string>
+    <string name="gallery_related">おすすめ</string>
+    <string name="settings_nomedia_summary">イメージを隠す</string>
+    <string name="settings_nomedia_title">イメージをギャラリーから見えなくする</string>
+    <string name="reader_help">ヘルプ</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-ko/strings.xml b/app/src/main/res/values-ko/strings.xml
index f8839501..6b01b3ee 100644
--- a/app/src/main/res/values-ko/strings.xml
+++ b/app/src/main/res/values-ko/strings.xml
@@ -70,7 +70,7 @@
     <string name="settings_app_lock">앱 잠금</string>
     <string name="settings_app_lock_type">앱 잠금 종류</string>
     <string name="settings_app_version_title">앱 버전</string>
-    <string name="settings_lock_biomatrics">생체 인식</string>
+    <string name="settings_lock_biometrics">생체 인식</string>
     <string name="settings_lock_confirm">잠금 확인을 위해 한번 더 입력해주세요</string>
     <string name="settings_lock_enabled">사용 중</string>
     <string name="settings_lock_fingerprint">지문</string>
@@ -83,4 +83,23 @@
     <string name="main_menu_sort">정렬</string>
     <string name="main_menu_sort_popular">인기순</string>
     <string name="main_menu_sort_newest">시간순</string>
+    <string name="update_failed">"업데이트 "</string>
+    <string name="update_failed_message">수동 업데이트가 필요합니다. APK 파일은 다운로드 폴더에 있습니다.</string>
+    <string name="ignore_update">무시</string>
+    <string name="lock_corrupted">잠금 파일이 손상되었습니다! 앱을 재설치 해 주시기 바랍니다.</string>
+    <string name="update_no_permission">권한이 부여되어 있지 않아 자동 업데이트를 진행할 수 없습니다. 홈페이지에서 직접 다운로드 받으시기 바랍니다.</string>
+    <string name="settings_dark_mode_title">다크 모드</string>
+    <string name="settings_dark_mode_summary">딥 다크한 모오드</string>
+    <string name="gallery_details">갤러리 정보</string>
+    <string name="gallery_artists">작가</string>
+    <string name="gallery_characters">캐릭터</string>
+    <string name="gallery_groups">그룹</string>
+    <string name="gallery_language">언어</string>
+    <string name="gallery_series">시리즈</string>
+    <string name="gallery_tags">태그</string>
+    <string name="gallery_related">관련 갤러리</string>
+    <string name="gallery_thumbnails">미리보기</string>
+    <string name="settings_nomedia_summary">이미지 숨기기</string>
+    <string name="settings_nomedia_title">갤러리에서 이미지 검색이 되지 않도록 합니다</string>
+    <string name="reader_help">도움말</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/dimen.xml b/app/src/main/res/values/dimen.xml
index 69fd045d..25399db6 100644
--- a/app/src/main/res/values/dimen.xml
+++ b/app/src/main/res/values/dimen.xml
@@ -8,4 +8,6 @@
 	<dimen name="activity_vertical_margin">16dp</dimen>
 	<dimen name="nav_header_vertical_spacing">8dp</dimen>
 	<dimen name="nav_header_height">176dp</dimen>
+
+	<dimen name="thumbnail_margin">8dp</dimen>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 76341623..40eb0bf9 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -10,6 +10,7 @@
     <string name="github" translatable="false">https://github.com/tom5079/Pupil-issue/issues/new/choose</string>
     <string name="email" translatable="false">mailto:pupil.hentai@gmail.com</string>
     <string name="kakaotalk" translatable="false">https://open.kakao.com/o/gvNrncsb</string>
+    <string name="error_help" translatable="false">http://bit.ly/2KYYhto</string>
 
     <string name="main_settings" translatable="false">Settings</string>
     <string name="galleryblock_thumbnail_description" translatable="false">Thumbnail</string>
@@ -26,10 +27,17 @@
     <string name="https_block_alert_title">(Korean only)</string>
     <string name="https_block_alert">(Korean only)</string>
 
+    <string name="update_failed">Update failed</string>
+    <string name="update_failed_message">Please install manually. APK file is in the Downloads folder.</string>
+    <string name="update_no_permission">Cannot auto update because permission is denied. Please download manually from the webpage.</string>
+    <string name="ignore_update">Ignore</string>
+
     <string name="channel_download">Download</string>
     <string name="channel_download_description">Shows download status</string>
 
     <string name="unable_to_connect">Unable to connect to hitomi.la</string>
+    
+    <string name="lock_corrupted">Lock file corrupted! Please re-install Pupil</string>
 
     <string name="main_search">Search</string>
     <string name="main_no_result">No result</string>
@@ -71,6 +79,16 @@
     <string name="search_hint">Search galleries</string>
     <string name="search_hint_with_page">Search galleries</string>
 
+    <string name="gallery_details">Details</string>
+    <string name="gallery_thumbnails">Thumbnails</string>
+    <string name="gallery_related">Related Galleries</string>
+    <string name="gallery_artists">Artists</string>
+    <string name="gallery_groups">Groups</string>
+    <string name="gallery_language">Language</string>
+    <string name="gallery_series">Series</string>
+    <string name="gallery_characters">Characters</string>
+    <string name="gallery_tags">Tags</string>
+
     <string name="galleryblock_series">Series: %1$s</string>
     <string name="galleryblock_type">Type: %1$s</string>
     <string name="galleryblock_language">Language: %1$s</string>
@@ -84,6 +102,8 @@
     <string name="reader_notification_complete">Download complete</string>
     <string name="reader_notification_error">Download error</string>
 
+    <string name="reader_help">Help</string>
+
     <string name="settings_title">Settings</string>
     <string name="settings_app_version_title">App version</string>
     <string name="settings_search_title">Search Settings</string>
@@ -105,12 +125,16 @@
     <string name="settings_use_hiyobi_summary">Load images from hiyobi.me to improve loading speed (if available)</string>
     <string name="settings_security_mode_title">Enable security mode</string>
     <string name="settings_security_mode_summary">Enable security mode to make the screen invisible on recent app window</string>
+    <string name="settings_dark_mode_title">Dark mode</string>
+    <string name="settings_dark_mode_summary">Protect yourself against light attacks!</string>
+    <string name="settings_nomedia_title">Hide image from gallery</string>
+    <string name="settings_nomedia_summary">Hides image from gallery</string>
 
     <string name="settings_lock_none">None</string>
     <string name="settings_lock_pattern">Pattern</string>
     <string name="settings_lock_pin" translatable="false">PIN</string>
     <string name="settings_lock_password">Password</string>
-    <string name="settings_lock_biomatrics">Biomatrics</string>
+    <string name="settings_lock_biometrics">Biometrics</string>
     <string name="settings_lock_fingerprint">Fingerprint</string>
     <string name="settings_lock_enabled">Enabled</string>
     <string name="settings_lock_confirm">Input same lock once more to confirm Lock</string>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index 448d30a8..07d47381 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -1,14 +1,14 @@
 <resources>
 
     <!-- Base application theme. -->
-    <style name="AppTheme" parent="Theme.MaterialComponents.Light.DarkActionBar">
+    <style name="AppTheme" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
         <!-- Customize your theme here. -->
         <item name="colorPrimary">@color/colorPrimary</item>
         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
         <item name="colorAccent">@color/colorAccent</item>
     </style>
 
-    <style name="NoActionBarAppTheme" parent="Theme.MaterialComponents.Light.NoActionBar">
+    <style name="NoActionBarAppTheme" parent="Theme.MaterialComponents.DayNight.NoActionBar">
         <!-- Customize your theme here. -->
         <item name="colorPrimary">@color/colorPrimary</item>
         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
diff --git a/app/src/main/res/xml/lock_preferences.xml b/app/src/main/res/xml/lock_preferences.xml
index 9fed9fba..3c3baab3 100644
--- a/app/src/main/res/xml/lock_preferences.xml
+++ b/app/src/main/res/xml/lock_preferences.xml
@@ -15,7 +15,7 @@
         app:key="lock_password"/>
 
     <PreferenceCategory
-        app:title="@string/settings_lock_biomatrics">
+        app:title="@string/settings_lock_biometrics">
 
         <Preference
             app:title="@string/settings_lock_fingerprint"
diff --git a/app/src/main/res/xml/root_preferences.xml b/app/src/main/res/xml/root_preferences.xml
index e823e4fb..3af7023a 100644
--- a/app/src/main/res/xml/root_preferences.xml
+++ b/app/src/main/res/xml/root_preferences.xml
@@ -20,7 +20,6 @@
         <Preference
             app:key="default_query"
             app:title="@string/settings_default_query"
-            app:defaultValue=""
             app:useSimpleSummaryProvider="true"/>
 
     </PreferenceCategory>
@@ -65,6 +64,15 @@
             app:summary="@string/settings_security_mode_summary"
             app:defaultValue="true"/>
 
+        <SwitchPreference
+            app:key="dark_mode"
+            app:title="@string/settings_dark_mode_title"
+            app:summary="@string/settings_dark_mode_summary"/>
+
+        <SwitchPreference
+            app:key="nomedia"
+            app:title="@string/settings_nomedia_title"
+            app:summary="@string/settings_nomedia_title"/>
     </PreferenceCategory>
 
 </androidx.preference.PreferenceScreen>
diff --git a/build.gradle b/build.gradle
index 548c220f..5fcfbacf 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,7 +1,7 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.3.41'
+    ext.kotlin_version = '1.3.50'
     repositories {
         google()
         jcenter()
@@ -10,15 +10,15 @@ buildscript {
         }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.4.1'
+        classpath 'com.android.tools.build:gradle:3.5.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath "org.jetbrains.kotlin:kotlin-android-extensions:$kotlin_version"
         classpath "org.jetbrains.kotlin:kotlin-serialization:$kotlin_version"
-        classpath 'com.google.gms:google-services:4.3.0'
+        classpath 'com.google.gms:google-services:4.3.1'
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
         classpath 'io.fabric.tools:gradle:1.29.0'
-        classpath 'com.google.firebase:perf-plugin:1.2.1'
+        classpath 'com.google.firebase:perf-plugin:1.3.1'
     }
 }
 
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 2518566d..381916e7 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Thu Apr 25 10:57:40 KST 2019
+#Fri Aug 23 08:21:15 KST 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip
diff --git a/libpupil/build.gradle b/libpupil/build.gradle
index b616a77e..5a3ea8bf 100644
--- a/libpupil/build.gradle
+++ b/libpupil/build.gradle
@@ -14,7 +14,6 @@ dependencies {
 sourceCompatibility = "7"
 targetCompatibility = "7"
 buildscript {
-    ext.kotlin_version = '1.3.31'
     repositories {
         mavenCentral()
     }
diff --git a/libpupil/src/main/java/xyz/quaver/hitomi/galleries.kt b/libpupil/src/main/java/xyz/quaver/hitomi/galleries.kt
index 3f292dca..754108ce 100644
--- a/libpupil/src/main/java/xyz/quaver/hitomi/galleries.kt
+++ b/libpupil/src/main/java/xyz/quaver/hitomi/galleries.kt
@@ -18,11 +18,12 @@ package xyz.quaver.hitomi
 
 import org.jsoup.Jsoup
 import java.net.URL
+import java.net.URLDecoder
 
 data class Gallery(
     val related: List<Int>,
     val langList: List<Pair<String, String>>,
-    val cover: URL,
+    val cover: String,
     val title: String,
     val artists: List<String>,
     val groups: List<String>,
@@ -31,7 +32,7 @@ data class Gallery(
     val series: List<String>,
     val characters: List<String>,
     val tags: List<String>,
-    val thumbnails: List<URL>
+    val thumbnails: List<String>
 )
 fun getGallery(galleryID: Int) : Gallery {
     val url = "https://hitomi.la/galleries/$galleryID.html"
@@ -48,7 +49,7 @@ fun getGallery(galleryID: Int) : Gallery {
             Pair(it.text(), it.attr("href").replace(".html", ""))
         }
 
-    val cover = URL(protocol + doc.selectFirst(".cover img").attr("src"))
+    val cover = protocol + doc.selectFirst(".cover img").attr("src")
     val title = doc.selectFirst(".gallery h1 a").text()
     val artists = doc.select(".gallery h2 a").map { it.text() }
     val groups = doc.select(".gallery-info a[href~=^/group/]").map { it.text() }
@@ -63,14 +64,14 @@ fun getGallery(galleryID: Int) : Gallery {
     val characters = doc.select(".gallery-info a[href~=^/character/]").map { it.text() }
 
     val tags = doc.select(".gallery-info a[href~=^/tag/]").map {
-        val href = it.attr("href")
+        val href = URLDecoder.decode(it.attr("href"), "UTF-8")
         href.slice(5 until href.indexOf('-'))
     }
 
-    val thumbnails = Regex("'(//tn.hitomi.la/smalltn/\\d+/\\d+.+)',")
+    val thumbnails = Regex("'(//tn.hitomi.la/smalltn/\\d+/.+)',")
         .findAll(doc.select("script").last().html())
         .map {
-            URL(protocol + it.groups[1]!!.value)
+            protocol + it.groups[1]!!.value
         }.toList()
 
     return Gallery(related, langList, cover, title, artists, groups, type, language, series, characters, tags, thumbnails)
diff --git a/libpupil/src/main/java/xyz/quaver/hitomi/results.kt b/libpupil/src/main/java/xyz/quaver/hitomi/results.kt
index ee51d067..af9a4787 100644
--- a/libpupil/src/main/java/xyz/quaver/hitomi/results.kt
+++ b/libpupil/src/main/java/xyz/quaver/hitomi/results.kt
@@ -57,30 +57,33 @@ fun doSearch(query: String, sortByPopularity: Boolean = false) : List<Int> {
     var results = when {
         sortByPopularity -> getGalleryIDsFromNozomi(null, "popular", "all")
         positiveTerms.isEmpty() -> getGalleryIDsFromNozomi(null, "index", "all")
-        else -> getGalleryIDsForQuery(positiveTerms.poll())
+        else -> listOf()
     }
 
     runBlocking {
         @Synchronized fun filterPositive(newResults: List<Int>) {
-            results = results.filter { newResults.binarySearch(it) >= 0 }
+            results = when {
+                results.isEmpty() -> newResults
+                else -> newResults.sorted().let { sorted ->
+                    results.filter { sorted.binarySearch(it) >= 0 }
+                }
+            }
         }
 
         @Synchronized fun filterNegative(newResults: List<Int>) {
-            results = results.filter { newResults.binarySearch(it) < 0 }
+            results = newResults.sorted().let { sorted ->
+                results.filter { sorted.binarySearch(it) < 0 }
+            }
         }
 
         //positive results
         positiveResults.forEach {
-            val result = it.await()
-
-            filterPositive(result.sorted())
+            filterPositive(it.await())
         }
 
         //negative results
         negativeResults.forEach {
-            val result = it.await()
-
-            filterNegative(result.sorted())
+            filterNegative(it.await())
         }
     }
 
diff --git a/libpupil/src/main/java/xyz/quaver/hitomi/search.kt b/libpupil/src/main/java/xyz/quaver/hitomi/search.kt
index 5b08b1df..fbcd4a66 100644
--- a/libpupil/src/main/java/xyz/quaver/hitomi/search.kt
+++ b/libpupil/src/main/java/xyz/quaver/hitomi/search.kt
@@ -16,7 +16,6 @@
 
 package xyz.quaver.hitomi
 
-import java.io.ByteArrayOutputStream
 import java.net.URL
 import java.nio.ByteBuffer
 import java.nio.ByteOrder
@@ -175,22 +174,18 @@ fun getGalleryIDsFromNozomi(area: String?, tag: String, language: String) : List
             }
 
     try {
-        with (URL(nozomiAddress).openConnection() as HttpsURLConnection) {
-            requestMethod = "GET"
+        val bytes = URL(nozomiAddress).readBytes()
 
-            val nozomi = ArrayList<Int>()
+        val nozomi = ArrayList<Int>()
 
-            val bytes = inputStream.readBytes()
+        val arrayBuffer = ByteBuffer
+            .wrap(bytes)
+            .order(ByteOrder.BIG_ENDIAN)
 
-            val arrayBuffer = ByteBuffer
-                .wrap(bytes)
-                .order(ByteOrder.BIG_ENDIAN)
+        while (arrayBuffer.hasRemaining())
+            nozomi.add(arrayBuffer.int)
 
-            while (arrayBuffer.hasRemaining())
-                nozomi.add(arrayBuffer.int)
-
-            return nozomi
-        }
+        return nozomi
     } catch (e: Exception) {
         return emptyList()
     }
diff --git a/libpupil/src/test/java/xyz/quaver/hitomi/UnitTest.kt b/libpupil/src/test/java/xyz/quaver/hitomi/UnitTest.kt
index 851ce929..79091867 100644
--- a/libpupil/src/test/java/xyz/quaver/hitomi/UnitTest.kt
+++ b/libpupil/src/test/java/xyz/quaver/hitomi/UnitTest.kt
@@ -70,7 +70,7 @@ class UnitTest {
 
     @Test
     fun test_getReader() {
-        val reader = getReader(1404693)
+        val reader = getReader(1442740)
 
         print(reader)
     }