diff --git a/app/src/main/kotlin/androidx/compose/foundation/gestures/AnchoredHorizontalDraggable.kt b/app/src/main/kotlin/androidx/compose/foundation/gestures/AnchoredHorizontalDraggable.kt
index d0867d5ca..24a3fd6cc 100644
--- a/app/src/main/kotlin/androidx/compose/foundation/gestures/AnchoredHorizontalDraggable.kt
+++ b/app/src/main/kotlin/androidx/compose/foundation/gestures/AnchoredHorizontalDraggable.kt
@@ -185,7 +185,7 @@ private class AnchoredHorizontalDraggableNode<T>(
         }
     }
 
-    override fun onDragStarted(startedPosition: Offset) { }
+    override fun onDragStarted(startedPosition: Offset) = Unit
 
     override fun onDragStopped(velocity: Velocity) {
         if (!isAttached) return
diff --git a/app/src/main/kotlin/com/hippo/ehviewer/client/EhCookieStore.kt b/app/src/main/kotlin/com/hippo/ehviewer/client/EhCookieStore.kt
index dc37e37e4..b5e78fcca 100644
--- a/app/src/main/kotlin/com/hippo/ehviewer/client/EhCookieStore.kt
+++ b/app/src/main/kotlin/com/hippo/ehviewer/client/EhCookieStore.kt
@@ -13,7 +13,7 @@ object EhCookieStore : CookiesStorage {
 
     fun hasSignedIn(): Boolean = getCookies(EhUrl.HOST_E)?.run {
         containsKey(KEY_IPB_MEMBER_ID) && containsKey(KEY_IPB_PASS_HASH)
-    } ?: false
+    } == true
 
     const val KEY_IPB_MEMBER_ID = "ipb_member_id"
     const val KEY_IPB_PASS_HASH = "ipb_pass_hash"
diff --git a/app/src/main/kotlin/com/hippo/ehviewer/client/EhFilter.kt b/app/src/main/kotlin/com/hippo/ehviewer/client/EhFilter.kt
index 459a34dbd..751749593 100644
--- a/app/src/main/kotlin/com/hippo/ehviewer/client/EhFilter.kt
+++ b/app/src/main/kotlin/com/hippo/ehviewer/client/EhFilter.kt
@@ -55,8 +55,8 @@ object EhFilter : CoroutineScope {
     suspend fun needTags() = filters.await().any { it.enable && (it.mode == FilterMode.TAG || it.mode == FilterMode.TAG_NAMESPACE) }
     suspend fun filterTitle(info: GalleryInfo) = anyActive(FilterMode.TITLE) { info.title.orEmpty().contains(it.text, true) }
     suspend fun filterUploader(info: GalleryInfo) = anyActive(FilterMode.UPLOADER) { it.text == info.uploader }
-    suspend fun filterTag(info: GalleryInfo) = info.simpleTags?.any { tag -> anyActive(FilterMode.TAG) { matchTag(tag, it.text.lowercase()) } } ?: false
-    suspend fun filterTagNamespace(info: GalleryInfo) = info.simpleTags?.any { tag -> anyActive(FilterMode.TAG_NAMESPACE) { matchTagNamespace(tag, it.text.lowercase()) } } ?: false
+    suspend fun filterTag(info: GalleryInfo) = info.simpleTags?.any { tag -> anyActive(FilterMode.TAG) { matchTag(tag, it.text.lowercase()) } } == true
+    suspend fun filterTagNamespace(info: GalleryInfo) = info.simpleTags?.any { tag -> anyActive(FilterMode.TAG_NAMESPACE) { matchTagNamespace(tag, it.text.lowercase()) } } == true
     suspend fun filterCommenter(commenter: String) = anyActive(FilterMode.COMMENTER) { it.text == commenter }
     suspend fun filterComment(comment: String) = anyActive(FilterMode.COMMENT) { regex(it).containsMatchIn(comment) }
 }
diff --git a/app/src/main/kotlin/com/hippo/ehviewer/client/parser/GalleryDetailParser.kt b/app/src/main/kotlin/com/hippo/ehviewer/client/parser/GalleryDetailParser.kt
index b19163306..ae44ce965 100644
--- a/app/src/main/kotlin/com/hippo/ehviewer/client/parser/GalleryDetailParser.kt
+++ b/app/src/main/kotlin/com/hippo/ehviewer/client/parser/GalleryDetailParser.kt
@@ -400,8 +400,6 @@ object GalleryDetailParser {
                         hasMore = true
                     }
                 }
-
-                override fun tail(node: Node, depth: Int) {}
             },
             chd!!,
         )
diff --git a/app/src/main/kotlin/com/hippo/ehviewer/client/parser/ParserUtils.kt b/app/src/main/kotlin/com/hippo/ehviewer/client/parser/ParserUtils.kt
index 4ee709344..cf80e0415 100644
--- a/app/src/main/kotlin/com/hippo/ehviewer/client/parser/ParserUtils.kt
+++ b/app/src/main/kotlin/com/hippo/ehviewer/client/parser/ParserUtils.kt
@@ -41,7 +41,7 @@ object ParserUtils {
 
     fun parseDate(str: String): Long = formatter.parse(str).toEpochMillis()
 
-    fun trim(str: String?): String = str?.unescapeXml()?.trim() ?: ""
+    fun trim(str: String?): String = str?.unescapeXml()?.trim().orEmpty()
 
     fun parseInt(str: String?, defValue: Int): Int = trim(str).replace(",", "").toIntOrDefault(defValue)
 
diff --git a/app/src/main/kotlin/com/hippo/ehviewer/spider/SpiderDen.kt b/app/src/main/kotlin/com/hippo/ehviewer/spider/SpiderDen.kt
index 5bc382d37..78e88da67 100644
--- a/app/src/main/kotlin/com/hippo/ehviewer/spider/SpiderDen.kt
+++ b/app/src/main/kotlin/com/hippo/ehviewer/spider/SpiderDen.kt
@@ -284,7 +284,7 @@ class SpiderDen(val info: GalleryInfo) {
                 FileUtils.getExtensionFromFilename(source.name)!!
             }
 
-            override fun close() {}
+            override fun close() = Unit
         }
     }
 
diff --git a/app/src/main/kotlin/com/hippo/ehviewer/spider/SpiderQueen.kt b/app/src/main/kotlin/com/hippo/ehviewer/spider/SpiderQueen.kt
index 120f8fd3c..36fca0352 100644
--- a/app/src/main/kotlin/com/hippo/ehviewer/spider/SpiderQueen.kt
+++ b/app/src/main/kotlin/com/hippo/ehviewer/spider/SpiderQueen.kt
@@ -617,7 +617,7 @@ class SpiderQueen private constructor(val galleryInfo: GalleryInfo) : CoroutineS
                             originImageUrl += "?nl=$skipHathKey"
                         }
                         val pageUrl = EhUrl.getPageUrl(spiderInfo.gid, index, pToken)
-                        EhEngine.getOriginalImageUrl(originImageUrl!!, pageUrl) to EhUrl.referer
+                        EhEngine.getOriginalImageUrl(originImageUrl!!, pageUrl) to referer
                     } else {
                         // Original image url won't change, so only set forceHtml in this case
                         forceHtml = true
diff --git a/app/src/main/kotlin/com/hippo/ehviewer/ui/reader/SettingsPager.kt b/app/src/main/kotlin/com/hippo/ehviewer/ui/reader/SettingsPager.kt
index 129b1c4f6..c7cd236ea 100644
--- a/app/src/main/kotlin/com/hippo/ehviewer/ui/reader/SettingsPager.kt
+++ b/app/src/main/kotlin/com/hippo/ehviewer/ui/reader/SettingsPager.kt
@@ -18,7 +18,7 @@ import androidx.compose.ui.res.stringResource
 import com.hippo.ehviewer.R
 import kotlinx.coroutines.launch
 
-private val tabs = arrayOf(
+private val tabs = intArrayOf(
     R.string.pref_category_reading_mode,
     R.string.pref_category_general,
     R.string.custom_filter,
diff --git a/app/src/main/kotlin/com/hippo/ehviewer/ui/screen/DownloadsFilterState.kt b/app/src/main/kotlin/com/hippo/ehviewer/ui/screen/DownloadsFilterState.kt
index 6d8a55c89..7676ee209 100644
--- a/app/src/main/kotlin/com/hippo/ehviewer/ui/screen/DownloadsFilterState.kt
+++ b/app/src/main/kotlin/com/hippo/ehviewer/ui/screen/DownloadsFilterState.kt
@@ -19,5 +19,5 @@ fun DownloadsFilterState.take(info: DownloadInfo) = mode.take(info, label) &&
     with(info) {
         title.containsIgnoreCase(keyword) ||
             titleJpn.containsIgnoreCase(keyword) ||
-            simpleTags?.any { it.containsIgnoreCase(keyword) } ?: false
+            simpleTags?.any { it.containsIgnoreCase(keyword) } == true
     }
diff --git a/app/src/main/kotlin/com/hippo/ehviewer/ui/screen/GalleryDetailScreen.kt b/app/src/main/kotlin/com/hippo/ehviewer/ui/screen/GalleryDetailScreen.kt
index dc6decdd1..8eb8bea73 100644
--- a/app/src/main/kotlin/com/hippo/ehviewer/ui/screen/GalleryDetailScreen.kt
+++ b/app/src/main/kotlin/com/hippo/ehviewer/ui/screen/GalleryDetailScreen.kt
@@ -261,7 +261,7 @@ fun AnimatedVisibilityScope.GalleryDetailScreen(args: GalleryDetailScreenArgs, n
                                             CreateDocument("application/vnd.comicbook+zip"),
                                             EhUtils.getSuitableTitle(info) + ".cbz",
                                         )
-                                        val dirname = downloadInfo?.dirname
+                                        val dirname = downloadInfo.dirname
                                         if (uri != null && dirname != null) {
                                             val file = uri.toOkioPath()
                                             val msg = runCatching {
diff --git a/app/src/main/kotlin/com/hippo/ehviewer/ui/tools/TextActionModeCallback.kt b/app/src/main/kotlin/com/hippo/ehviewer/ui/tools/TextActionModeCallback.kt
index ee2a20842..c77f0bf46 100644
--- a/app/src/main/kotlin/com/hippo/ehviewer/ui/tools/TextActionModeCallback.kt
+++ b/app/src/main/kotlin/com/hippo/ehviewer/ui/tools/TextActionModeCallback.kt
@@ -64,7 +64,7 @@ open class TextActionModeCallback(
         return true
     }
 
-    override fun onDestroyActionMode(mode: ActionMode) {}
+    override fun onDestroyActionMode(mode: ActionMode) = Unit
 
     override fun onGetContentRect(mode: ActionMode, view: View, outRect: PlatformRect) {
         outRect.set(rect.left.toInt(), rect.top.toInt(), rect.right.toInt(), rect.bottom.toInt())
diff --git a/app/src/main/kotlin/com/hippo/ehviewer/util/ClipboardUtil.kt b/app/src/main/kotlin/com/hippo/ehviewer/util/ClipboardUtil.kt
index 0660ea064..820c39f9b 100644
--- a/app/src/main/kotlin/com/hippo/ehviewer/util/ClipboardUtil.kt
+++ b/app/src/main/kotlin/com/hippo/ehviewer/util/ClipboardUtil.kt
@@ -29,15 +29,13 @@ import com.hippo.ehviewer.ui.MainActivity
 import splitties.systemservices.clipboardManager
 
 fun copyTextToClipboard(text: CharSequence?, isSensitive: Boolean) {
-    clipboardManager.apply {
-        setPrimaryClip(
-            ClipData.newPlainText(null, text).apply {
-                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU && isSensitive) {
-                    description.extras = persistableBundleOf(ClipDescription.EXTRA_IS_SENSITIVE to true)
-                }
-            },
-        )
-    }
+    clipboardManager.setPrimaryClip(
+        ClipData.newPlainText(null, text).apply {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU && isSensitive) {
+                description.extras = persistableBundleOf(ClipDescription.EXTRA_IS_SENSITIVE to true)
+            }
+        },
+    )
 }
 
 fun Context.addTextToClipboard(text: CharSequence?, useToast: Boolean = false) {
diff --git a/app/src/main/kotlin/com/hippo/ehviewer/util/FileUtils.kt b/app/src/main/kotlin/com/hippo/ehviewer/util/FileUtils.kt
index e41b78c72..be75bcbaf 100644
--- a/app/src/main/kotlin/com/hippo/ehviewer/util/FileUtils.kt
+++ b/app/src/main/kotlin/com/hippo/ehviewer/util/FileUtils.kt
@@ -28,7 +28,7 @@ object FileUtils {
     // ext4 through a FUSE layer, so use that limit.
     private const val MAX_FILENAME_BYTES = 255
 
-    fun ensureDirectory(file: File?) = file?.let { if (it.exists()) it.isDirectory else it.mkdirs() } ?: false
+    fun ensureDirectory(file: File?) = file?.let { if (it.exists()) it.isDirectory else it.mkdirs() } == true
 
     /**
      * Convert byte to human readable string.<br></br>
diff --git a/app/src/main/kotlin/com/hippo/ehviewer/util/GalleryAdsUtils.kt b/app/src/main/kotlin/com/hippo/ehviewer/util/GalleryAdsUtils.kt
index 655c9cc30..b46a3fc73 100644
--- a/app/src/main/kotlin/com/hippo/ehviewer/util/GalleryAdsUtils.kt
+++ b/app/src/main/kotlin/com/hippo/ehviewer/util/GalleryAdsUtils.kt
@@ -8,6 +8,6 @@ import splitties.init.appCtx
 fun detectAds(index: Int, size: Int) = index > size - 10 && Settings.stripExtraneousAds.value
 
 val GalleryInfo.hasAds
-    get() = simpleTags?.any { "extraneous ads" in it } ?: false
+    get() = simpleTags?.any { "extraneous ads" in it } == true
 
 val AdsPlaceholderFile = appCtx.filesDir.toOkioPath() / "AdsPlaceholder"
diff --git a/app/src/main/kotlin/com/hippo/ehviewer/util/StringUtils.kt b/app/src/main/kotlin/com/hippo/ehviewer/util/StringUtils.kt
index 5974b5464..7722fb2b6 100644
--- a/app/src/main/kotlin/com/hippo/ehviewer/util/StringUtils.kt
+++ b/app/src/main/kotlin/com/hippo/ehviewer/util/StringUtils.kt
@@ -12,4 +12,4 @@ fun String.toLongOrDefault(defaultValue: Long): Long = toLongOrNull() ?: default
 
 fun String.toFloatOrDefault(defaultValue: Float): Float = toFloatOrNull() ?: defaultValue
 
-fun String?.containsIgnoreCase(other: String) = this?.contains(other, true) ?: false
+fun String?.containsIgnoreCase(other: String) = this?.contains(other, true) == true
diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
index 7eb789b7f..1694f92cf 100755
--- a/app/src/main/res/values-de/strings.xml
+++ b/app/src/main/res/values-de/strings.xml
@@ -92,9 +92,6 @@
     <string name="no_comments">Kein Kommentar</string>
     <string name="no_more_comments">Keine weiteren Kommentare</string>
     <string name="more_comment">Weitere Kommentare</string>
-    <string name="no_previews">Keine Vorschau</string>
-    <string name="no_more_previews">Keine weiteren Vorschauen</string>
-    <string name="more_previews">Weitere Vorschauen</string>
     <string name="refresh">Neu laden</string>
     <string name="open_in_other_app">Öffnen mit …</string>
     <string name="rate_successfully">Bewertung erfolgreich</string>
@@ -159,7 +156,6 @@
     <string name="cancel_vote_down_successfully">Die negative Stimmung wurde abgebrochen</string>
     <string name="vote_failed">Stimmung gescheitert</string>
     <string name="check_vote_status">Details der Stimmungen anzeigen</string>
-    <string name="gallery_previews">Vorschauen der Galerie</string>
     <string name="go_to">Gehe zu</string>
     <string name="scene_download_title">Download - %s</string>
     <string name="no_download_info">Downloads werden hier angezeigt</string>
@@ -231,15 +227,11 @@
     <string name="settings_eh_detail_size">Größe der Details</string>
     <string name="settings_eh_detail_size_long">Lange</string>
     <string name="settings_eh_detail_size_short">Kurz</string>
-    <string name="settings_eh_thumb_resolution">Auflösung der Miniaturbilder</string>
-    <string name="settings_eh_thumb_resolution_summary">Nun %s. Mit abnormale Auflösung kann die Miniaturbilder nicht normalerweise geladen werden.</string>
-    <string name="settings_eh_thumb_resolution_auto">Automatisch</string>
     <string name="settings_advanced_app_language_title">Sprache der App (Language)</string>
     <string name="torrent_count">Torrent (%d)</string>
     <string name="settings_eh_show_jpn_title">Japanische Titel anzeigen</string>
     <string name="settings_eh_filter">Galerie-Blocker</string>
     <string name="settings_eh_filter_summary">Nach Titel, Uploader order Etiketten die unerwünschten Galerien verstecken</string>
-    <string name="settings_read_volume_page">Seiten mit Lautstärketaste umblättern</string>
     <string name="settings_download">Download</string>
     <string name="settings_download_download_location">Downloadziel</string>
     <string name="settings_download_cant_get_download_location">Downloadziel konnte nicht geladen werden</string>
diff --git a/app/src/main/res/values-es/strings.xml b/app/src/main/res/values-es/strings.xml
index 22cd20383..8772abf7f 100644
--- a/app/src/main/res/values-es/strings.xml
+++ b/app/src/main/res/values-es/strings.xml
@@ -114,9 +114,6 @@
     <string name="no_comments">Sin comentarios</string>
     <string name="no_more_comments">No hay más comentarios</string>
     <string name="more_comment">Más comentarios</string>
-    <string name="no_previews">Sin vistas previas</string>
-    <string name="no_more_previews">No hay más vistas previas</string>
-    <string name="more_previews">Más vistas previas</string>
     <string name="refresh">Actualizar</string>
     <string name="open_in_other_app">Abrir en otra aplicación</string>
     <string name="rate_successfully">Valoración completada</string>
@@ -181,7 +178,6 @@
     <string name="check_vote_status">Verificar estado del voto</string>
 
     <!-- Gallery Previews -->
-    <string name="gallery_previews">Vista previa de la galería</string>
     <string name="go_to">Ir a</string>
 
     <!-- Download -->
@@ -251,9 +247,6 @@
     <string name="settings_eh_detail_size">Tamaño del detalle</string>
     <string name="settings_eh_detail_size_long">Largo</string>
     <string name="settings_eh_detail_size_short">Corto</string>
-    <string name="settings_eh_thumb_resolution">Resolución de vista previa</string>
-    <string name="settings_eh_thumb_resolution_summary">%s, las resoluciones especiales podrían causar errores en la vista previa</string>
-    <string name="settings_eh_thumb_resolution_auto">Automático</string>
     <string name="settings_eh_show_jpn_title">Mostrar títulos en japonés</string>
     <string name="settings_eh_show_jpn_title_summary">Es necesario habilitar los títulos en japonés en la propia página de EHentai</string>
     <string name="settings_eh_show_gallery_pages">Mostrar número de páginas de la galería</string>
@@ -261,8 +254,6 @@
     <string name="settings_eh_filter">Filtrado de galerías</string>
     <string name="settings_eh_filter_summary">Filtrado de galerías por título, uploader y etiquetas. Para más detalles presiona el ícono (i) en la parte superior del menú</string>
 
-    <string name="settings_read_volume_page">Pasar páginas con botón del volumen</string>
-
     <string name="settings_download">Descargas</string>
     <string name="settings_download_download_location">Ruta de descargas</string>
     <string name="settings_download_cant_get_download_location">No se puede obtener ruta de descargas</string>
diff --git a/app/src/main/res/values-fr/strings.xml b/app/src/main/res/values-fr/strings.xml
index 4c993845d..e0ff81061 100755
--- a/app/src/main/res/values-fr/strings.xml
+++ b/app/src/main/res/values-fr/strings.xml
@@ -123,9 +123,6 @@
     <string name="no_comments">Aucun commentaire</string>
     <string name="no_more_comments">Pas d\'autres commentaires</string>
     <string name="more_comment">Voir plus de commentaires</string>
-    <string name="no_previews">Aucun aperçu</string>
-    <string name="no_more_previews">Pas d\'autres aperçus</string>
-    <string name="more_previews">Voir plus d\'aperçus</string>
     <string name="refresh">Rafraîchir</string>
     <string name="open_in_other_app">Ouvrir avec une autre appli</string>
     <string name="rate_successfully">Noté avec succès</string>
@@ -196,7 +193,6 @@
     <string name="check_vote_status">Voir les détails des votes</string>
 
     <!-- Gallery Previews -->
-    <string name="gallery_previews">Aperçus de la galerie</string>
     <string name="go_to">Aller à</string>
 
     <!-- Download -->
@@ -286,15 +282,10 @@
     <string name="settings_eh_detail_size">Taille des détails</string>
     <string name="settings_eh_detail_size_long">Long</string>
     <string name="settings_eh_detail_size_short">Court</string>
-    <string name="settings_eh_thumb_resolution">Résolution des miniatures</string>
-    <string name="settings_eh_thumb_resolution_summary">Auctuellement %s. Certaines résolutions spéciales êmpechent de les charger correctement.</string>
-    <string name="settings_eh_thumb_resolution_auto">Auto</string>
     <string name="settings_eh_show_jpn_title">Montrer les titres japonais</string>
     <string name="settings_eh_filter">Bloqueur des galeries</string>
     <string name="settings_eh_filter_summary">Filtrer les galerie par les titres, les uploaders ou les tags</string>
 
-    <string name="settings_read_volume_page">Tourner la page avec les Volumes</string>
-
     <!-- My Tags Activity -->
     <string name="my_tags">Tags suivis</string>
 
diff --git a/app/src/main/res/values-ja/strings.xml b/app/src/main/res/values-ja/strings.xml
index 8ab7ef887..1e7948f1b 100644
--- a/app/src/main/res/values-ja/strings.xml
+++ b/app/src/main/res/values-ja/strings.xml
@@ -118,9 +118,6 @@
     <string name="no_comments">コメントなし</string>
     <string name="no_more_comments">コメントはこれ以上ありません</string>
     <string name="more_comment">他のコメントを見る</string>
-    <string name="no_previews">プレビューなし</string>
-    <string name="no_more_previews">プレビューはこれ以上ありません</string>
-    <string name="more_previews">他のプレビューを見る</string>
     <string name="refresh">更新</string>
     <string name="view_original">オリジナルの画像を表示</string>
     <string name="open_in_other_app">他のアプリで開く</string>
@@ -206,7 +203,6 @@
     <string name="format_url">URL</string>
     <string name="format_plain">プレーンテキスト</string>
     <!-- Gallery Previews -->
-    <string name="gallery_previews">ギャラリーのプレビュー</string>
     <string name="go_to">ページに移動</string>
     <!-- Download -->
     <string name="scene_download_title">ダウンロード - %s</string>
@@ -301,9 +297,6 @@
     <string name="settings_eh_detail_size_long">長い</string>
     <string name="settings_eh_detail_size_short">短い</string>
     <string name="settings_eh_thumb_columns">サムネイルのカラム数</string>
-    <string name="settings_eh_thumb_resolution">サムネイル解像度</string>
-    <string name="settings_eh_thumb_resolution_summary">現在の解像度は「%s」です。解像度によってはサムネイルの取得に失敗する場合があります。</string>
-    <string name="settings_eh_thumb_resolution_auto">自動</string>
     <string name="settings_eh_force_eh_thumb">E-Hentai サムネイルサーバーを使用する</string>
     <string name="settings_eh_force_eh_thumb_summary">サムネイルの読み込みに問題がある場合は無効化してください</string>
     <string name="settings_eh_show_jpn_title">日本語のタイトルを表示</string>
@@ -320,10 +313,6 @@
     <string name="settings_eh_tag_translations_source_url">https://placeholder</string>
     <string name="settings_eh_filter">ギャラリーをブロック</string>
     <string name="settings_eh_filter_summary">タイトル、アップローダー、タグ、コメントの投稿者またはギャラリーをブロックします</string>
-    <string name="settings_read_volume_page">音量ボタンでページをめくる</string>
-    <string name="settings_read_volume_page_fast">高速</string>
-    <string name="settings_read_volume_page_slow">低速</string>
-    <string name="settings_read_reverse_volume">音量ボタンを入れ替える</string>
     <string name="settings_block_extraneous_ads">[試験的] 関係のない広告をブロック</string>
     <string name="settings_ads_placeholder">[任意] 広告を置換するプレースホルダーを選択</string>
     <string name="settings_download">ダウンロード</string>
@@ -505,8 +494,6 @@
     <string name="preload_thumb_aggressively">サムネイルを積極的にプリロードする</string>
     <string name="animate_items">リスト項目のアニメーション</string>
     <string name="animate_items_summary">クラッシュやフレームドロップが発生する場合はこれを無効化してください</string>
-    <string name="desktop_site">デスクトップのサイト</string>
-    <string name="desktop_site_summary">デフォルトの画像解像度を高くします</string>
     <string name="auto_updates">自動で更新を確認する</string>
     <string name="update_frequency_never">しない</string>
     <string name="update_frequency_daily">毎日</string>
diff --git a/app/src/main/res/values-ko/strings.xml b/app/src/main/res/values-ko/strings.xml
index e94a2a5cd..801e84984 100755
--- a/app/src/main/res/values-ko/strings.xml
+++ b/app/src/main/res/values-ko/strings.xml
@@ -116,9 +116,6 @@
     <string name="no_comments">코멘트 없음</string>
     <string name="no_more_comments">코멘트가 더 없음</string>
     <string name="more_comment">코멘트 더 보기</string>
-    <string name="no_previews">미리 보기 없음</string>
-    <string name="no_more_previews">미리 보기가 더 없음</string>
-    <string name="more_previews">더 불러오기</string>
     <string name="refresh">새로고침</string>
     <string name="open_in_other_app">다른 앱에서 열기</string>
     <string name="rate_successfully">평가를 남겼습니다.</string>
@@ -173,7 +170,6 @@
     <string name="check_vote_status">추천/비추천 상태 보기</string>
 
     <!-- Gallery Previews -->
-    <string name="gallery_previews">갤러리 미리 보기</string>
     <string name="go_to">이동</string>
 
     <!-- Download -->
@@ -258,9 +254,6 @@
     <string name="settings_eh_detail_size">상세 정보 크기</string>
     <string name="settings_eh_detail_size_long">길게</string>
     <string name="settings_eh_detail_size_short">짧게</string>
-    <string name="settings_eh_thumb_resolution">섬네일 해상도</string>
-    <string name="settings_eh_thumb_resolution_summary">특정 해상도로 설정하면 섬네일을 불러오지 못할 수 있습니다. 현재 설정\u003a \u005b%s\u005d</string>
-    <string name="settings_eh_thumb_resolution_auto">자동</string>
     <string name="settings_eh_show_jpn_title">일본어 제목 표시</string>
     <string name="settings_eh_show_gallery_pages">갤러리 페이지 수 표시</string>
     <string name="settings_eh_show_gallery_pages_summary">갤러리 목록에 해당 갤러리의 페이지 수를 표시합니다</string>
@@ -269,8 +262,6 @@
     <string name="settings_eh_tag_translations_source">Placeholder</string>
     <string name="settings_eh_tag_translations_source_url">https://placeholder</string>
 
-    <string name="settings_read_volume_page">볼륨 키로 페이지 넘기기</string>
-
     <string name="settings_download">다운로드</string>
     <string name="settings_download_download_location">다운로드 위치</string>
     <string name="settings_download_cant_get_download_location">다운로드 위치를 가져올 수 없습니다.</string>
diff --git a/app/src/main/res/values-nb-rNO/strings.xml b/app/src/main/res/values-nb-rNO/strings.xml
index f61b4051a..eb1ae83e1 100644
--- a/app/src/main/res/values-nb-rNO/strings.xml
+++ b/app/src/main/res/values-nb-rNO/strings.xml
@@ -45,12 +45,9 @@
     <string name="duplicate_name">Dette navnet er allerede i bruk.</string>
     <string name="star_5">5 stjerner</string>
     <string name="no_tags">Ingen etiketter</string>
-    <string name="no_previews">Ingen forhåndsvisninger</string>
-    <string name="no_more_previews">Ingen flere forhåndsvisninger</string>
     <string name="no_more_comments">Ingen flere kommentarer</string>
     <string name="open_in_other_app">Åpne med et annet program</string>
     <string name="torrents">Torrenter</string>
-    <string name="more_previews">Flere forhåndsvisninger</string>
     <string name="refresh">Gjenoppfrisk</string>
     <string name="get_it">Skjønner</string>
     <string name="keyword_search">Nøkkelordssøk</string>
@@ -121,7 +118,6 @@
     <string name="edit_comment">Rediger kommentar</string>
     <string name="stat_509_alert_title">509-advarsel</string>
     <string name="stat_download_done_title">Nedlasting fullført</string>
-    <string name="gallery_previews">Galleriforhåndsvisninger</string>
     <string name="download_state_none">Pauset</string>
     <string name="download_state_downloading">Laster ned</string>
     <string name="download_state_downloaded">Nedlastet</string>
@@ -175,7 +171,6 @@
     <string name="edge_nav">Kant</string>
     <string name="scale_type_stretch">Strekk</string>
     <string name="right_and_left_nav">Høyre og venstre</string>
-    <string name="settings_eh_thumb_resolution_auto">Automatisk</string>
     <string name="app_language_system">Systemspråk (forvalg)</string>
     <string name="error_something_wrong_happened">Noe gikk galt</string>
     <string name="just_now">Akkurat nå</string>
diff --git a/app/src/main/res/values-th/strings.xml b/app/src/main/res/values-th/strings.xml
index 607dd39d4..ef25d5ac5 100644
--- a/app/src/main/res/values-th/strings.xml
+++ b/app/src/main/res/values-th/strings.xml
@@ -118,9 +118,6 @@
     <string name="no_comments">ไม่มีความคิดเห็น</string>
     <string name="no_more_comments">ไม่มีความเห็นเพิ่มเติมแล้ว</string>
     <string name="more_comment">ความคิดเห็นเพิ่มเติม</string>
-    <string name="no_previews">ไม่มีรูปตัวอย่าง</string>
-    <string name="no_more_previews">ไม่มีรูปตัวอย่างเพิ่มเติมอีกแล้ว</string>
-    <string name="more_previews">มีรูปตัวอย่าง</string>
     <string name="refresh">รีเฟรช</string>
     <string name="open_in_other_app">เปิดด้วยแอปอื่น</string>
     <string name="rate_successfully">ให้คะแนนเรียบร้อยแล้ว</string>
@@ -188,7 +185,6 @@
     <string name="check_vote_status">ดูรายละเอียดการโหวต</string>
 
     <!-- Gallery Previews -->
-    <string name="gallery_previews">ตัวอย่างแกลเลอรี่</string>
     <string name="go_to">ไปที่</string>
 
     <!-- Download -->
@@ -273,9 +269,6 @@
     <string name="settings_eh_detail_size">ขนาดของรายละเอียด</string>
     <string name="settings_eh_detail_size_long">อย่างยาว</string>
     <string name="settings_eh_detail_size_short">อย่างสั้น</string>
-    <string name="settings_eh_thumb_resolution">ความละเอียดภาพตัวอย่าง</string>
-    <string name="settings_eh_thumb_resolution_summary">ค่าตอนนี้เป็น %s. การตั้งความละเอียดที่แน่นอนอาจจะส่งผลต่อการโหลดตัวอย่างที่อาจจะไม่สำเร็จด้วย</string>
-    <string name="settings_eh_thumb_resolution_auto">อัตโนมัติ</string>
     <string name="settings_eh_show_jpn_title">แสดงชื่อเรื่องญี่ปุ่น</string>
     <string name="settings_eh_show_gallery_pages">แสดงจำนวนหน้าของแกลเลอรี่</string>
     <string name="settings_eh_show_gallery_pages_summary">แสดงจำนวนหน้าที่มีอยู่ในแต่ละแกลเลอรี่</string>
@@ -284,8 +277,6 @@
     <string name="settings_eh_tag_translations_source">Placeholder</string>
     <string name="settings_eh_tag_translations_source_url">https://placeholder</string>
 
-    <string name="settings_read_volume_page">ใช้ปุ่มปรับเสียงเพื่อเปลี่ยนหน้า</string>
-
     <string name="settings_download">การดาวน์โหลด</string>
     <string name="settings_download_download_location">ตำแหน่งแหล่งดาวน์โหลด</string>
     <string name="settings_download_cant_get_download_location">ไม่สามารถเข้าถึงแหล่งดาวน์โหลดได้</string>
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index 14ebd3cc4..cd07a821d 100644
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -114,9 +114,6 @@
     <string name="no_comments">暂无评论</string>
     <string name="no_more_comments">已显示所有评论</string>
     <string name="more_comment">查看更多评论</string>
-    <string name="no_previews">没有预览</string>
-    <string name="no_more_previews">已显示所有预览</string>
-    <string name="more_previews">查看更多预览</string>
     <string name="refresh">刷新</string>
     <string name="view_original">查看原图</string>
     <string name="open_in_other_app">在其他应用中打开</string>
@@ -202,7 +199,6 @@
     <string name="format_url">链接</string>
     <string name="format_plain">纯文本</string>
     <!-- Gallery Previews -->
-    <string name="gallery_previews">画廊预览</string>
     <string name="go_to">跳页</string>
     <!-- Download -->
     <string name="scene_download_title">下载 - %s</string>
@@ -298,9 +294,6 @@
     <string name="settings_eh_detail_size_long">长</string>
     <string name="settings_eh_detail_size_short">短</string>
     <string name="settings_eh_thumb_columns">缩略图列数</string>
-    <string name="settings_eh_thumb_resolution">缩略图分辨率</string>
-    <string name="settings_eh_thumb_resolution_summary">%s，指定分辨率可能使获取缩略图失败</string>
-    <string name="settings_eh_thumb_resolution_auto">自动</string>
     <string name="settings_eh_force_eh_thumb">使用 e-hentai 缩略图服务器</string>
     <string name="settings_eh_force_eh_thumb_summary">若缩略图加载失败可尝试关闭此项</string>
     <string name="settings_eh_show_jpn_title">显示日文标题</string>
@@ -317,10 +310,6 @@
     <string name="settings_eh_tag_translations_source_url">https://github.com/EhTagTranslation/Editor/wiki</string>
     <string name="settings_eh_filter">屏蔽列表</string>
     <string name="settings_eh_filter_summary">根据标题、上传者、标签、评论者屏蔽画廊或评论</string>
-    <string name="settings_read_volume_page">使用音量键翻页</string>
-    <string name="settings_read_volume_page_fast">快</string>
-    <string name="settings_read_volume_page_slow">慢</string>
-    <string name="settings_read_reverse_volume">翻转音量键</string>
     <string name="settings_block_extraneous_ads">[实验性] 屏蔽外部广告</string>
     <string name="settings_ads_placeholder">[可选] 选择替换外部广告的图片</string>
     <string name="settings_download">下载</string>
@@ -501,8 +490,6 @@
     <string name="preload_thumb_aggressively">激进地预载缩略图</string>
     <string name="animate_items">列表项目动画</string>
     <string name="animate_items_summary">如遇崩溃/掉帧请尝试禁用此项</string>
-    <string name="desktop_site">桌面版网站</string>
-    <string name="desktop_site_summary">更高的默认图片分辨率</string>
     <string name="auto_updates">自动检查更新</string>
     <string name="update_frequency_never">从不</string>
     <string name="update_frequency_daily">每天</string>
diff --git a/app/src/main/res/values-zh-rHK/strings.xml b/app/src/main/res/values-zh-rHK/strings.xml
index 459ac1cd9..7fd80283e 100755
--- a/app/src/main/res/values-zh-rHK/strings.xml
+++ b/app/src/main/res/values-zh-rHK/strings.xml
@@ -129,9 +129,6 @@
     <string name="no_comments">暫無評論</string>
     <string name="no_more_comments">已顯示所有評論</string>
     <string name="more_comment">查看更多評論</string>
-    <string name="no_previews">沒有預覽</string>
-    <string name="no_more_previews">已顯示所有預覽</string>
-    <string name="more_previews">查看更多預覽</string>
     <string name="refresh">刷新</string>
     <string name="open_in_other_app">在其他應用中打開</string>
     <string name="rate_successfully">評分成功</string>
@@ -207,7 +204,6 @@
     <string name="last_edited">上次修改時間：%s</string>
 
     <!-- Gallery Previews -->
-    <string name="gallery_previews">畫廊預覽</string>
     <string name="go_to">跳頁</string>
 
     <!-- Download -->
@@ -305,9 +301,6 @@
     <string name="settings_eh_detail_size_long">長</string>
     <string name="settings_eh_detail_size_short">短</string>
     <string name="settings_eh_thumb_columns">縮略圖列數</string>
-    <string name="settings_eh_thumb_resolution">縮略圖分辨率</string>
-    <string name="settings_eh_thumb_resolution_summary">%s，指定分辨率可能使獲取縮略圖失敗</string>
-    <string name="settings_eh_thumb_resolution_auto">自動</string>
     <string name="settings_eh_show_jpn_title">顯示日文標題</string>
     <string name="settings_eh_show_jpn_title_summary">需同時在 EHentai 網站設置中啟用 Japanese Title</string>
     <string name="settings_eh_show_gallery_pages">顯示畫廊頁數</string>
@@ -319,8 +312,6 @@
     <string name="settings_eh_filter">屏蔽畫廊</string>
     <string name="settings_eh_filter_summary">根據標題、上傳者、標籤屏蔽畫廊</string>
 
-    <string name="settings_read_volume_page">使用音量鍵翻頁</string>
-
     <string name="settings_download">下載</string>
     <string name="settings_download_download_location">下載路徑</string>
     <string name="settings_download_cant_get_download_location">無法獲取下載路徑</string>
diff --git a/app/src/main/res/values-zh-rTW/strings.xml b/app/src/main/res/values-zh-rTW/strings.xml
index d3c5badaf..aa8355819 100644
--- a/app/src/main/res/values-zh-rTW/strings.xml
+++ b/app/src/main/res/values-zh-rTW/strings.xml
@@ -114,9 +114,6 @@
     <string name="no_comments">沒有留言</string>
     <string name="no_more_comments">已顯示所有的留言了</string>
     <string name="more_comment">更多留言</string>
-    <string name="no_previews">沒有預覽</string>
-    <string name="no_more_previews">已經顯示所有預覽了</string>
-    <string name="more_previews">更多預覽</string>
     <string name="refresh">重新整理</string>
     <string name="view_original">查看原圖</string>
     <string name="open_in_other_app">在其他應用程式中開啟</string>
@@ -202,7 +199,6 @@
     <string name="format_url">連結</string>
     <string name="format_plain">純文字</string>
     <!-- Gallery Previews -->
-    <string name="gallery_previews">圖庫預覽</string>
     <string name="go_to">跳到</string>
     <!-- Download -->
     <string name="scene_download_title">正在下載 - %s</string>
@@ -298,9 +294,6 @@
     <string name="settings_eh_detail_size_long">長</string>
     <string name="settings_eh_detail_size_short">短</string>
     <string name="settings_eh_thumb_columns">縮圖列數</string>
-    <string name="settings_eh_thumb_resolution">縮圖解析度</string>
-    <string name="settings_eh_thumb_resolution_summary">%s，指定解析度可能會使縮圖取得失敗</string>
-    <string name="settings_eh_thumb_resolution_auto">自動</string>
     <string name="settings_eh_force_eh_thumb">使用 e-hentai 縮圖伺服器</string>
     <string name="settings_eh_force_eh_thumb_summary">若縮圖載入遇到問題可嘗試停用此項</string>
     <string name="settings_eh_show_jpn_title">顯示日文標題</string>
@@ -317,10 +310,6 @@
     <string name="settings_eh_tag_translations_source_url">https://github.com/EhTagTranslation/Editor/wiki</string>
     <string name="settings_eh_filter">隱藏圖庫</string>
     <string name="settings_eh_filter_summary">根據標題、上傳者、標籤、評論者隱藏圖庫或評論</string>
-    <string name="settings_read_volume_page">使用音量鍵翻頁</string>
-    <string name="settings_read_volume_page_fast">快</string>
-    <string name="settings_read_volume_page_slow">慢</string>
-    <string name="settings_read_reverse_volume">翻轉音量鍵</string>
     <string name="settings_download">下載</string>
     <string name="settings_download_download_location">下載路徑</string>
     <string name="settings_download_cant_get_download_location">無法取得下載路徑</string>
diff --git a/app/src/main/res/values/arrays.xml b/app/src/main/res/values/arrays.xml
index 9a517aaac..b01618a3b 100644
--- a/app/src/main/res/values/arrays.xml
+++ b/app/src/main/res/values/arrays.xml
@@ -74,18 +74,6 @@
         <item>1</item>
     </integer-array>
 
-    <string-array name="thumb_resolution_entries" translatable="false">
-        <item>@string/settings_eh_thumb_resolution_auto</item>
-        <item>250x</item>
-        <item>300x</item>
-    </string-array>
-
-    <integer-array name="thumb_resolution_entry_values" translatable="false">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-    </integer-array>
-
     <string-array name="search_min_rating" translatable="false">
         <item>@string/any</item>
         <item>@string/star_2</item>
diff --git a/app/src/main/res/values/ids.xml b/app/src/main/res/values/ids.xml
deleted file mode 100644
index 74fe7530a..000000000
--- a/app/src/main/res/values/ids.xml
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?><!--
-  ~ Copyright 2016 Hippo Seven
-  ~
-  ~ Licensed under the Apache License, Version 2.0 (the "License");
-  ~ you may not use this file except in compliance with the License.
-  ~ You may obtain a copy of the License at
-  ~
-  ~     http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  -->
-
-<resources>
-
-    <item name="reader_pager" type="id" />
-
-</resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index bd1482566..f0a6adc7a 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -130,9 +130,6 @@
     <string name="no_comments">No comments</string>
     <string name="no_more_comments">No more comments</string>
     <string name="more_comment">More comments</string>
-    <string name="no_previews">No previews</string>
-    <string name="no_more_previews">No more previews</string>
-    <string name="more_previews">More previews</string>
     <string name="refresh">Refresh</string>
     <string name="view_original">View original image</string>
     <string name="open_in_other_app">Open with other app</string>
@@ -219,7 +216,6 @@
     <string name="format_url">URL</string>
     <string name="format_plain">Plain text</string>
     <!-- Gallery Previews -->
-    <string name="gallery_previews">Gallery Previews</string>
     <string name="go_to">Go to</string>
     <!-- Download -->
     <string name="scene_download_title">Download - %s</string>
@@ -314,9 +310,6 @@
     <string name="settings_eh_detail_size_long">Long</string>
     <string name="settings_eh_detail_size_short">Short</string>
     <string name="settings_eh_thumb_columns">Thumb columns</string>
-    <string name="settings_eh_thumb_resolution">Thumb resolution</string>
-    <string name="settings_eh_thumb_resolution_summary">Currently %s. Certain resolutions might cause getting thumb failed</string>
-    <string name="settings_eh_thumb_resolution_auto">Auto</string>
     <string name="settings_eh_force_eh_thumb">Use e-hentai thumbnail server</string>
     <string name="settings_eh_force_eh_thumb_summary">Try disabling this if you have trouble loading thumbnails</string>
     <string name="settings_eh_show_jpn_title">Show Japanese title</string>
@@ -333,10 +326,6 @@
     <string name="settings_eh_tag_translations_source_url">https://placeholder</string>
     <string name="settings_eh_filter">Blockers</string>
     <string name="settings_eh_filter_summary">Block gallery or comment by title, uploader, tags and commenter</string>
-    <string name="settings_read_volume_page">Use volume key to turn pages</string>
-    <string name="settings_read_volume_page_fast">Fast</string>
-    <string name="settings_read_volume_page_slow">Slow</string>
-    <string name="settings_read_reverse_volume">Reverse volume key</string>
     <string name="settings_block_extraneous_ads">[Experimental] Block extraneous ads</string>
     <string name="settings_ads_placeholder">[Optional] Pick placeholder to replace ads</string>
     <string name="settings_download">Download</string>
@@ -520,8 +509,6 @@
     <string name="preload_thumb_aggressively">Preload thumbs aggressively</string>
     <string name="animate_items">List item animations</string>
     <string name="animate_items_summary">Try disabling this if you are facing crashes / frame drops</string>
-    <string name="desktop_site">Desktop site</string>
-    <string name="desktop_site_summary">Higher default image resolution</string>
     <string name="auto_updates">Automatically check for updates</string>
     <string name="update_frequency_never">Never</string>
     <string name="update_frequency_daily">Daily</string>