diff --git a/app/src/main/java/eu/kanade/tachiyomi/util/system/ContextExtensions.kt b/app/src/main/java/eu/kanade/tachiyomi/util/system/ContextExtensions.kt
index 5f91bfbacc..44635e98dc 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/util/system/ContextExtensions.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/util/system/ContextExtensions.kt
@@ -1,13 +1,11 @@
 package eu.kanade.tachiyomi.util.system
 
-import android.app.ActivityManager
 import android.content.ClipData
 import android.content.ClipboardManager
 import android.content.Context
 import android.content.Intent
 import android.content.pm.PackageManager
 import android.content.res.Configuration
-import android.graphics.drawable.Drawable
 import android.net.Uri
 import android.os.Build
 import android.os.PowerManager
@@ -68,26 +66,6 @@ fun Context.hasPermission(
 val Context.powerManager: PowerManager
     get() = getSystemService()!!
 
-/**
- * Convenience method to acquire a partial wake lock.
- */
-fun Context.acquireWakeLock(tag: String): PowerManager.WakeLock {
-    val wakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "$tag:WakeLock")
-    wakeLock.acquire()
-    return wakeLock
-}
-
-/**
- * Returns true if the given service class is running.
- */
-fun Context.isServiceRunning(serviceClass: Class<*>): Boolean {
-    val className = serviceClass.name
-    val manager = getSystemService(Context.ACTIVITY_SERVICE) as ActivityManager
-    @Suppress("DEPRECATION")
-    return manager.getRunningServices(Integer.MAX_VALUE)
-        .any { className == it.service.className }
-}
-
 fun Context.openInBrowser(url: String, forceDefaultBrowser: Boolean = false) {
     this.openInBrowser(url.toUri(), forceDefaultBrowser)
 }
@@ -200,11 +178,3 @@ fun Context.isInstalledFromFDroid(): Boolean {
         // F-Droid builds typically disable the updater
         (!BuildConfig.INCLUDE_UPDATER && !isDevFlavor)
 }
-
-fun Context.getApplicationIcon(pkgName: String): Drawable? {
-    return try {
-        packageManager.getApplicationIcon(pkgName)
-    } catch (e: PackageManager.NameNotFoundException) {
-        null
-    }
-}
diff --git a/app/src/main/res/color/ripple_toolbar_fainter.xml b/app/src/main/res/color/ripple_toolbar_fainter.xml
deleted file mode 100644
index e7fb4ba66b..0000000000
--- a/app/src/main/res/color/ripple_toolbar_fainter.xml
+++ /dev/null
@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<selector xmlns:android="http://schemas.android.com/apk/res/android">
-    <!-- 34% of 12% = ~4% -->
-    <item android:alpha="0.34" android:color="?attr/colorControlHighlight" />
-</selector>
diff --git a/app/src/main/res/color/slider_active_track.xml b/app/src/main/res/color/slider_active_track.xml
deleted file mode 100644
index 764d21bf3d..0000000000
--- a/app/src/main/res/color/slider_active_track.xml
+++ /dev/null
@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<selector xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:color="?attr/colorPrimary" android:state_enabled="true"/>
-    <item android:alpha="@dimen/material_emphasis_disabled" android:color="?attr/colorOnSurface"/>
-</selector>
\ No newline at end of file
diff --git a/app/src/main/res/color/slider_inactive_track.xml b/app/src/main/res/color/slider_inactive_track.xml
deleted file mode 100644
index 0f624c1173..0000000000
--- a/app/src/main/res/color/slider_inactive_track.xml
+++ /dev/null
@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<selector xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:alpha="0.24" android:color="?attr/colorPrimary" android:state_enabled="true"/>
-    <item android:alpha="@dimen/material_emphasis_disabled" android:color="?attr/colorOnSurface"/>
-</selector>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/ic_blank_24dp.xml b/app/src/main/res/drawable/ic_blank_24dp.xml
deleted file mode 100644
index 940db069fd..0000000000
--- a/app/src/main/res/drawable/ic_blank_24dp.xml
+++ /dev/null
@@ -1,7 +0,0 @@
-<shape xmlns:android="http://schemas.android.com/apk/res/android"
-    android:shape="rectangle">
-    <size
-        android:width="24dp"
-        android:height="24dp" />
-    <solid android:color="@android:color/transparent" />
-</shape>
diff --git a/app/src/main/res/drawable/ic_offline_pin_24dp.xml b/app/src/main/res/drawable/ic_offline_pin_24dp.xml
deleted file mode 100644
index f3dcb36251..0000000000
--- a/app/src/main/res/drawable/ic_offline_pin_24dp.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24">
-    <path
-        android:fillColor="#000"
-        android:pathData="M12,2C6.5,2 2,6.5 2,12s4.5,10 10,10s10,-4.5 10,-10S17.5,2 12,2zM17,18H7v-2h10V18zM10.3,14L7,10.7l1.4,-1.4l1.9,1.9l5.3,-5.3L17,7.3L10.3,14z" />
-</vector>
diff --git a/app/src/main/res/drawable/ic_webview_24dp.xml b/app/src/main/res/drawable/ic_webview_24dp.xml
deleted file mode 100644
index 9400f45ed1..0000000000
--- a/app/src/main/res/drawable/ic_webview_24dp.xml
+++ /dev/null
@@ -1,7 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24">
-    <path android:fillColor="#FFF" android:pathData="M12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM11,19.93c-3.95,-0.49 -7,-3.85 -7,-7.93 0,-0.62 0.08,-1.21 0.21,-1.79L9,15v1c0,1.1 0.9,2 2,2v1.93zM17.9,17.39c-0.26,-0.81 -1,-1.39 -1.9,-1.39h-1v-3c0,-0.55 -0.45,-1 -1,-1L8,12v-2h2c0.55,0 1,-0.45 1,-1L11,7h2c1.1,0 2,-0.9 2,-2v-0.41c2.93,1.19 5,4.06 5,7.41 0,2.08 -0.8,3.97 -2.1,5.39z"/>
-</vector>
diff --git a/app/src/main/res/drawable/transparent_tabs_background.xml b/app/src/main/res/drawable/transparent_tabs_background.xml
deleted file mode 100644
index a503ef6985..0000000000
--- a/app/src/main/res/drawable/transparent_tabs_background.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
-    <item>
-        <shape
-            android:shape="rectangle">
-            <solid android:color="@android:color/transparent"/>
-        </shape>
-    </item>
-    <item
-        android:gravity="bottom">
-        <shape>
-            <size android:height="1dp" />
-            <solid android:color="?attr/colorSurfaceVariant" />
-        </shape>
-    </item>
-</layer-list>
diff --git a/app/src/main/res/values-sw720dp/dimens.xml b/app/src/main/res/values-sw720dp/dimens.xml
deleted file mode 100644
index 5cb983dc47..0000000000
--- a/app/src/main/res/values-sw720dp/dimens.xml
+++ /dev/null
@@ -1,3 +0,0 @@
-<resources>
-    <dimen name="screen_edge_margin">24dp</dimen>
-</resources>
diff --git a/app/src/main/res/values/dimens.xml b/app/src/main/res/values/dimens.xml
index e822887675..af52b6c3dd 100644
--- a/app/src/main/res/values/dimens.xml
+++ b/app/src/main/res/values/dimens.xml
@@ -1,6 +1,4 @@
 <resources>
-    <dimen name="screen_edge_margin">16dp</dimen>
-
     <dimen name="appwidget_background_radius">16dp</dimen>
     <dimen name="appwidget_inner_radius">12dp</dimen>
 </resources>