diff --git a/app/build.gradle b/app/build.gradle
index 43de65d76..c0a668f4d 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -5,7 +5,7 @@ android {
 
     defaultConfig {
         applicationId "com.hippo.ehviewer"
-        minSdkVersion 14
+        minSdkVersion 21
         targetSdkVersion 28
         versionCode 104
         versionName "1.7.3"
@@ -64,7 +64,7 @@ clean {
 
 dependencies {
     implementation fileTree(include: ['*.jar'], dir: 'libs')
-    implementation 'androidx.appcompat:appcompat:1.1.0'
+    implementation 'androidx.appcompat:appcompat:1.2.0-alpha03'
     implementation 'androidx.cardview:cardview:1.0.0'
     implementation 'com.google.android.material:material:1.1.0'
     implementation 'com.getkeepsafe.relinker:relinker:1.3.1'
diff --git a/app/src/debug/res/values-es/strings.xml b/app/src/debug/res/values-es/strings.xml
index 82d363589..fc1747762 100755
--- a/app/src/debug/res/values-es/strings.xml
+++ b/app/src/debug/res/values-es/strings.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2016 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -18,5 +17,5 @@
 <resources>
 
     <string name="app_name">EhViewer Debug</string>
-    
+
 </resources>
diff --git a/app/src/debug/res/values-ja/strings.xml b/app/src/debug/res/values-ja/strings.xml
index 82d363589..fc1747762 100755
--- a/app/src/debug/res/values-ja/strings.xml
+++ b/app/src/debug/res/values-ja/strings.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2016 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -18,5 +17,5 @@
 <resources>
 
     <string name="app_name">EhViewer Debug</string>
-    
+
 </resources>
diff --git a/app/src/debug/res/values-ko/strings.xml b/app/src/debug/res/values-ko/strings.xml
index 82d363589..fc1747762 100755
--- a/app/src/debug/res/values-ko/strings.xml
+++ b/app/src/debug/res/values-ko/strings.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2016 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -18,5 +17,5 @@
 <resources>
 
     <string name="app_name">EhViewer Debug</string>
-    
+
 </resources>
diff --git a/app/src/debug/res/values-zh-rCN/strings.xml b/app/src/debug/res/values-zh-rCN/strings.xml
index 82d363589..fc1747762 100755
--- a/app/src/debug/res/values-zh-rCN/strings.xml
+++ b/app/src/debug/res/values-zh-rCN/strings.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2016 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -18,5 +17,5 @@
 <resources>
 
     <string name="app_name">EhViewer Debug</string>
-    
+
 </resources>
diff --git a/app/src/debug/res/values-zh-rHK/strings.xml b/app/src/debug/res/values-zh-rHK/strings.xml
index 82d363589..fc1747762 100755
--- a/app/src/debug/res/values-zh-rHK/strings.xml
+++ b/app/src/debug/res/values-zh-rHK/strings.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2016 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -18,5 +17,5 @@
 <resources>
 
     <string name="app_name">EhViewer Debug</string>
-    
+
 </resources>
diff --git a/app/src/debug/res/values-zh-rTW/strings.xml b/app/src/debug/res/values-zh-rTW/strings.xml
index 82d363589..fc1747762 100755
--- a/app/src/debug/res/values-zh-rTW/strings.xml
+++ b/app/src/debug/res/values-zh-rTW/strings.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2016 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -18,5 +17,5 @@
 <resources>
 
     <string name="app_name">EhViewer Debug</string>
-    
+
 </resources>
diff --git a/app/src/debug/res/values/strings.xml b/app/src/debug/res/values/strings.xml
index 82d363589..fc1747762 100755
--- a/app/src/debug/res/values/strings.xml
+++ b/app/src/debug/res/values/strings.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2016 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -18,5 +17,5 @@
 <resources>
 
     <string name="app_name">EhViewer Debug</string>
-    
+
 </resources>
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index e81110a99..e05dd3a24 100755
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -134,6 +134,7 @@
         <activity
             android:name="com.hippo.ehviewer.ui.SettingsActivity"
             android:configChanges="screenSize|uiMode"
+            android:label="@string/settings"
             android:theme="@style/AppTheme.Settings"/>
 
         <activity
diff --git a/app/src/main/java/com/hippo/ehviewer/EhApplication.java b/app/src/main/java/com/hippo/ehviewer/EhApplication.java
index 94307a964..c18e6df80 100644
--- a/app/src/main/java/com/hippo/ehviewer/EhApplication.java
+++ b/app/src/main/java/com/hippo/ehviewer/EhApplication.java
@@ -31,6 +31,7 @@ import android.util.Log;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatDelegate;
 import androidx.collection.LruCache;
 
 import com.getkeepsafe.relinker.ReLinker;
@@ -282,6 +283,8 @@ public class EhApplication extends RecordingApplication {
             EhDB.mergeOldDB(this);
         }
 
+        AppCompatDelegate.setDefaultNightMode(Settings.getTheme());
+
         // Do io tasks in new thread
         new AsyncTask<Void, Void, Void>() {
             @Override
diff --git a/app/src/main/java/com/hippo/ehviewer/Settings.java b/app/src/main/java/com/hippo/ehviewer/Settings.java
index 1f5da023d..c45fbd98a 100755
--- a/app/src/main/java/com/hippo/ehviewer/Settings.java
+++ b/app/src/main/java/com/hippo/ehviewer/Settings.java
@@ -49,8 +49,9 @@ public class Settings {
      ********************/
 
     public static final String KEY_THEME = "theme";
-    public static final int THEME_LIGHT = 0;
-    public static final int THEME_DARK = 1;
+    public static final String KEY_BLACK_DARK_THEME = "black_dark_theme";
+    public static final int THEME_LIGHT = 1;
+    public static final int THEME_SYSTEM = -1;
     public static final int THEME_BLACK = 2;
     public static final String KEY_APPLY_NAV_BAR_THEME_COLOR = "apply_nav_bar_theme_color";
     public static final String KEY_GALLERY_SITE = "gallery_site";
@@ -109,7 +110,7 @@ public class Settings {
     private static final boolean DEFAULT_SELECT_SITE = true;
     private static final String KEY_QUICK_SEARCH_TIP = "quick_search_tip";
     private static final boolean DEFAULT_QUICK_SEARCH_TIP = true;
-    private static final int DEFAULT_THEME = THEME_LIGHT;
+    private static final int DEFAULT_THEME = THEME_SYSTEM;
     private static final boolean DEFAULT_APPLY_NAV_BAR_THEME_COLOR = true;
     private static final int DEFAULT_GALLERY_SITE = 1;
     private static final String KEY_LAUNCH_PAGE = "launch_page";
@@ -129,6 +130,8 @@ public class Settings {
     private static final String DEFAULT_EXCLUDED_LANGUAGES = null;
     private static final String KEY_CELLULAR_NETWORK_WARNING = "cellular_network_warning";
     private static final boolean DEFAULT_CELLULAR_NETWORK_WARNING = false;
+    private static final String KEY_NIGHT_MODE = "night_mode";
+    private static final String DEFAULT_NIGHT_MODE = "-1";
     /********************
      ****** Read
      ********************/
diff --git a/app/src/main/java/com/hippo/ehviewer/download/DownloadService.java b/app/src/main/java/com/hippo/ehviewer/download/DownloadService.java
index 5ed29f7de..f34aa3bda 100644
--- a/app/src/main/java/com/hippo/ehviewer/download/DownloadService.java
+++ b/app/src/main/java/com/hippo/ehviewer/download/DownloadService.java
@@ -484,6 +484,7 @@ public class DownloadService extends Service implements DownloadManager.Download
         // false for show, true for cancel
         @Ops
         private int mOps;
+
         public NotificationDelay(Service service, NotificationManager notifyManager,
                                  NotificationCompat.Builder builder, int id) {
             mService = service;
diff --git a/app/src/main/java/com/hippo/ehviewer/preference/VersionPreference.java b/app/src/main/java/com/hippo/ehviewer/preference/VersionPreference.java
index 08e1dcf68..eb3b65be2 100644
--- a/app/src/main/java/com/hippo/ehviewer/preference/VersionPreference.java
+++ b/app/src/main/java/com/hippo/ehviewer/preference/VersionPreference.java
@@ -19,9 +19,10 @@ package com.hippo.ehviewer.preference;
 import android.content.Context;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
-import androidx.preference.Preference;
 import android.util.AttributeSet;
 
+import androidx.preference.Preference;
+
 import com.hippo.ehviewer.R;
 
 public class VersionPreference extends Preference {
diff --git a/app/src/main/java/com/hippo/ehviewer/ui/EhActivity.java b/app/src/main/java/com/hippo/ehviewer/ui/EhActivity.java
index ac2d7360d..f855e340c 100644
--- a/app/src/main/java/com/hippo/ehviewer/ui/EhActivity.java
+++ b/app/src/main/java/com/hippo/ehviewer/ui/EhActivity.java
@@ -17,6 +17,8 @@
 package com.hippo.ehviewer.ui;
 
 import android.content.Context;
+import android.content.res.Configuration;
+import android.content.res.Resources;
 import android.os.Build;
 import android.os.Bundle;
 import android.view.WindowManager;
@@ -32,9 +34,59 @@ import com.hippo.ehviewer.R;
 import com.hippo.ehviewer.Settings;
 
 import java.util.Locale;
+import java.util.Objects;
 
 public abstract class EhActivity extends AppCompatActivity {
 
+    private static final String THEME_DEFAULT = "DEFAULT";
+    private static final String THEME_BLACK = "BLACK";
+    private String mTheme;
+
+    public static boolean isBlackNightTheme() {
+        return Settings.getBoolean("black_dark_theme", false);
+    }
+
+    public static String getTheme(Context context) {
+        if (isBlackNightTheme()
+                && isNightMode(context.getResources().getConfiguration()))
+            return THEME_BLACK;
+
+        return THEME_DEFAULT;
+    }
+
+    public static boolean isNightMode(Configuration configuration) {
+        return (configuration.uiMode & Configuration.UI_MODE_NIGHT_YES) > 0;
+    }
+
+    @Override
+    protected void onApplyThemeResource(Resources.Theme theme, int resid, boolean first) {
+        // apply real style and our custom style
+        if (getParent() == null) {
+            theme.applyStyle(resid, true);
+        } else {
+            try {
+                theme.setTo(getParent().getTheme());
+            } catch (Exception e) {
+                // Empty
+            }
+            theme.applyStyle(resid, false);
+        }
+        theme.applyStyle(getThemeStyleRes(this), true);
+        // only pass theme style to super, so styled theme will not be overwritten
+        super.onApplyThemeResource(theme, R.style.ThemeOverlay, first);
+    }
+
+    @StyleRes
+    public int getThemeStyleRes(Context context) {
+        switch (getTheme(context)) {
+            case THEME_BLACK:
+                return R.style.ThemeOverlay_Black;
+            case THEME_DEFAULT:
+            default:
+                return R.style.ThemeOverlay;
+        }
+    }
+
     @StyleRes
     protected abstract int getThemeResId(int theme);
 
@@ -49,6 +101,7 @@ public abstract class EhActivity extends AppCompatActivity {
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP && Settings.getApplyNavBarThemeColor()) {
             getWindow().setNavigationBarColor(AttrResources.getAttrColor(this, R.attr.colorPrimaryDark));
         }
+        mTheme = getTheme(this);
     }
 
     @Override
@@ -67,6 +120,9 @@ public abstract class EhActivity extends AppCompatActivity {
         } else {
             getWindow().clearFlags(WindowManager.LayoutParams.FLAG_SECURE);
         }
+        if (!Objects.equals(mTheme, getTheme(this))) {
+            recreate();
+        }
     }
 
     @Override
diff --git a/app/src/main/java/com/hippo/ehviewer/ui/GalleryActivity.java b/app/src/main/java/com/hippo/ehviewer/ui/GalleryActivity.java
index 497371301..35c1abc68 100644
--- a/app/src/main/java/com/hippo/ehviewer/ui/GalleryActivity.java
+++ b/app/src/main/java/com/hippo/ehviewer/ui/GalleryActivity.java
@@ -48,6 +48,7 @@ import android.widget.Toast;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatDelegate;
 import androidx.appcompat.widget.SwitchCompat;
 
 import com.hippo.android.resource.AttrResources;
@@ -176,15 +177,7 @@ public class GalleryActivity extends EhActivity implements SeekBar.OnSeekBarChan
 
     @Override
     protected int getThemeResId(int theme) {
-        switch (theme) {
-            case Settings.THEME_LIGHT:
-            default:
-                return R.style.AppTheme_Gallery;
-            case Settings.THEME_DARK:
-                return R.style.AppTheme_Gallery_Dark;
-            case Settings.THEME_BLACK:
-                return R.style.AppTheme_Gallery_Black;
-        }
+        return R.style.AppTheme_Gallery;
     }
 
     private void buildProvider() {
@@ -246,8 +239,9 @@ public class GalleryActivity extends EhActivity implements SeekBar.OnSeekBarChan
     }
 
     @Override
-    @SuppressWarnings({"deprecation", "WrongConstant"})
+    @SuppressWarnings({"WrongConstant"})
     protected void onCreate(@Nullable Bundle savedInstanceState) {
+        getDelegate().setLocalNightMode(AppCompatDelegate.MODE_NIGHT_YES);
         if (Settings.getReadingFullscreen() && Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
             Window w = getWindow();
             w.setFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION,
diff --git a/app/src/main/java/com/hippo/ehviewer/ui/MainActivity.java b/app/src/main/java/com/hippo/ehviewer/ui/MainActivity.java
index 587e02cad..fac7141eb 100644
--- a/app/src/main/java/com/hippo/ehviewer/ui/MainActivity.java
+++ b/app/src/main/java/com/hippo/ehviewer/ui/MainActivity.java
@@ -25,14 +25,12 @@ import android.content.pm.PackageManager;
 import android.graphics.Bitmap;
 import android.net.ConnectivityManager;
 import android.net.Uri;
-import android.os.Build;
 import android.os.Bundle;
 import android.os.PersistableBundle;
 import android.text.TextUtils;
 import android.view.Gravity;
 import android.view.MenuItem;
 import android.view.View;
-import android.widget.Button;
 import android.widget.FrameLayout;
 import android.widget.TextView;
 import android.widget.Toast;
@@ -47,7 +45,6 @@ import androidx.drawerlayout.widget.DrawerLayout;
 import com.google.android.material.navigation.NavigationView;
 import com.google.android.material.snackbar.Snackbar;
 import com.hippo.ehviewer.AppConfig;
-import com.hippo.ehviewer.EhApplication;
 import com.hippo.ehviewer.R;
 import com.hippo.ehviewer.Settings;
 import com.hippo.ehviewer.client.EhTagDatabase;
@@ -139,21 +136,11 @@ public final class MainActivity extends StageActivity
     private LoadImageView mAvatar;
     @Nullable
     private TextView mDisplayName;
-    @Nullable
-    private Button mChangeTheme;
     private int mNavCheckedItem = 0;
 
     @Override
     protected int getThemeResId(int theme) {
-        switch (theme) {
-            case Settings.THEME_LIGHT:
-            default:
-                return R.style.AppTheme_Main;
-            case Settings.THEME_DARK:
-                return R.style.AppTheme_Main_Dark;
-            case Settings.THEME_BLACK:
-                return R.style.AppTheme_Main_Black;
-        }
+        return R.style.AppTheme_Main;
     }
 
     @Override
@@ -168,9 +155,9 @@ public final class MainActivity extends StageActivity
             return new Announcer(SecurityScene.class);
         } else if (Settings.getShowWarning()) {
             return new Announcer(WarningScene.class);
-        } else if (Settings.getAskAnalytics()) {
+        }/* else if (Settings.getAskAnalytics()) {
             return new Announcer(AnalyticsScene.class);
-        } else if (EhUtils.needSignedIn(this)) {
+        }*/ else if (EhUtils.needSignedIn(this)) {
             return new Announcer(SignInScene.class);
         } else if (Settings.getSelectSite()) {
             return new Announcer(SelectSiteScene.class);
@@ -194,12 +181,12 @@ public final class MainActivity extends StageActivity
                 newArgs.putString(WarningScene.KEY_TARGET_SCENE, announcer.getClazz().getName());
                 newArgs.putBundle(WarningScene.KEY_TARGET_ARGS, announcer.getArgs());
                 return new Announcer(WarningScene.class).setArgs(newArgs);
-            } else if (Settings.getAskAnalytics()) {
+            }/* else if (Settings.getAskAnalytics()) {
                 Bundle newArgs = new Bundle();
                 newArgs.putString(AnalyticsScene.KEY_TARGET_SCENE, announcer.getClazz().getName());
                 newArgs.putBundle(AnalyticsScene.KEY_TARGET_ARGS, announcer.getArgs());
                 return new Announcer(AnalyticsScene.class).setArgs(newArgs);
-            } else if (EhUtils.needSignedIn(this)) {
+            }*/ else if (EhUtils.needSignedIn(this)) {
                 Bundle newArgs = new Bundle();
                 newArgs.putString(SignInScene.KEY_TARGET_SCENE, announcer.getClazz().getName());
                 newArgs.putBundle(SignInScene.KEY_TARGET_ARGS, announcer.getArgs());
@@ -333,14 +320,6 @@ public final class MainActivity extends StageActivity
         View headerLayout = mNavView.getHeaderView(0);
         mAvatar = (LoadImageView) ViewUtils.$$(headerLayout, R.id.avatar);
         mDisplayName = (TextView) ViewUtils.$$(headerLayout, R.id.display_name);
-        mChangeTheme = (Button) ViewUtils.$$(this, R.id.change_theme);
-
-        //mDrawerLayout.setStatusBarColor(ResourcesUtils.getAttrColor(this, R.attr.colorPrimaryDark));
-        // Pre-L need shadow drawable
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
-            mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow_left, Gravity.LEFT);
-            mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow_right, Gravity.RIGHT);
-        }
 
         updateProfile();
 
@@ -348,12 +327,6 @@ public final class MainActivity extends StageActivity
             mNavView.setNavigationItemSelectedListener(this);
         }
 
-        mChangeTheme.setText(getThemeText());
-        mChangeTheme.setOnClickListener(v -> {
-            Settings.putTheme(getNextTheme());
-            ((EhApplication) getApplication()).recreate();
-        });
-
         if (savedInstanceState == null) {
             onInit();
             CommonOperations.checkUpdate(this, false);
@@ -368,35 +341,6 @@ public final class MainActivity extends StageActivity
         EhTagDatabase.update(this);
     }
 
-    private String getThemeText() {
-        int resId;
-        switch (Settings.getTheme()) {
-            default:
-            case Settings.THEME_LIGHT:
-                resId = R.string.theme_light;
-                break;
-            case Settings.THEME_DARK:
-                resId = R.string.theme_dark;
-                break;
-            case Settings.THEME_BLACK:
-                resId = R.string.theme_black;
-                break;
-        }
-        return getString(resId);
-    }
-
-    private int getNextTheme() {
-        switch (Settings.getTheme()) {
-            default:
-            case Settings.THEME_LIGHT:
-                return Settings.THEME_DARK;
-            case Settings.THEME_DARK:
-                return Settings.THEME_BLACK;
-            case Settings.THEME_BLACK:
-                return Settings.THEME_LIGHT;
-        }
-    }
-
     private void checkDownloadLocation() {
         UniFile uniFile = Settings.getDownloadLocation();
         // null == uniFile for first start
diff --git a/app/src/main/java/com/hippo/ehviewer/ui/SettingsActivity.java b/app/src/main/java/com/hippo/ehviewer/ui/SettingsActivity.java
index 3fe9e821a..010b4b320 100644
--- a/app/src/main/java/com/hippo/ehviewer/ui/SettingsActivity.java
+++ b/app/src/main/java/com/hippo/ehviewer/ui/SettingsActivity.java
@@ -25,7 +25,6 @@ import androidx.appcompat.app.ActionBar;
 import androidx.appcompat.app.ActionBarDrawerToggle;
 
 import com.hippo.ehviewer.R;
-import com.hippo.ehviewer.Settings;
 import com.hippo.ehviewer.ui.fragment.AboutFragment;
 import com.hippo.ehviewer.ui.fragment.AdvancedFragment;
 import com.hippo.ehviewer.ui.fragment.DownloadFragment;
@@ -50,15 +49,7 @@ public final class SettingsActivity extends EhActivity {
 
     @Override
     protected int getThemeResId(int theme) {
-        switch (theme) {
-            case Settings.THEME_LIGHT:
-            default:
-                return R.style.AppTheme_Settings;
-            case Settings.THEME_DARK:
-                return R.style.AppTheme_Settings_Dark;
-            case Settings.THEME_BLACK:
-                return R.style.AppTheme_Settings_Black;
-        }
+        return R.style.AppTheme_Settings;
     }
 
     private void setActionBarUpIndicator(Drawable drawable) {
diff --git a/app/src/main/java/com/hippo/ehviewer/ui/ToolbarActivity.java b/app/src/main/java/com/hippo/ehviewer/ui/ToolbarActivity.java
index 0fea81965..f537ce07b 100644
--- a/app/src/main/java/com/hippo/ehviewer/ui/ToolbarActivity.java
+++ b/app/src/main/java/com/hippo/ehviewer/ui/ToolbarActivity.java
@@ -26,21 +26,12 @@ import androidx.annotation.Nullable;
 import androidx.appcompat.widget.Toolbar;
 
 import com.hippo.ehviewer.R;
-import com.hippo.ehviewer.Settings;
 
 public abstract class ToolbarActivity extends EhActivity {
 
     @Override
     protected int getThemeResId(int theme) {
-        switch (theme) {
-            case Settings.THEME_LIGHT:
-            default:
-                return R.style.AppTheme_Toolbar;
-            case Settings.THEME_DARK:
-                return R.style.AppTheme_Toolbar_Dark;
-            case Settings.THEME_BLACK:
-                return R.style.AppTheme_Toolbar_Black;
-        }
+        return R.style.AppTheme_Toolbar;
     }
 
     @Override
diff --git a/app/src/main/java/com/hippo/ehviewer/ui/fragment/EhFragment.java b/app/src/main/java/com/hippo/ehviewer/ui/fragment/EhFragment.java
index be87309de..c1422b600 100644
--- a/app/src/main/java/com/hippo/ehviewer/ui/fragment/EhFragment.java
+++ b/app/src/main/java/com/hippo/ehviewer/ui/fragment/EhFragment.java
@@ -21,6 +21,7 @@ import android.os.Build;
 import android.os.Bundle;
 
 import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatDelegate;
 import androidx.preference.Preference;
 
 import com.hippo.ehviewer.EhApplication;
@@ -37,6 +38,7 @@ public class EhFragment extends PreferenceFragmentCompat
         addPreferencesFromResource(R.xml.eh_settings);
 
         Preference theme = findPreference(Settings.KEY_THEME);
+        Preference blackDarkTheme = findPreference(Settings.KEY_BLACK_DARK_THEME);
         Preference applyNavBarThemeColor = findPreference(Settings.KEY_APPLY_NAV_BAR_THEME_COLOR);
         Preference gallerySite = findPreference(Settings.KEY_GALLERY_SITE);
         Preference listMode = findPreference(Settings.KEY_LIST_MODE);
@@ -52,6 +54,7 @@ public class EhFragment extends PreferenceFragmentCompat
         detailSize.setOnPreferenceChangeListener(this);
         thumbSize.setOnPreferenceChangeListener(this);
         showTagTranslations.setOnPreferenceChangeListener(this);
+        blackDarkTheme.setOnPreferenceChangeListener(this);
 
         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
             getPreferenceScreen().removePreference(applyNavBarThemeColor);
@@ -67,6 +70,7 @@ public class EhFragment extends PreferenceFragmentCompat
     public boolean onPreferenceChange(Preference preference, Object newValue) {
         String key = preference.getKey();
         if (Settings.KEY_THEME.equals(key)) {
+            AppCompatDelegate.setDefaultNightMode(Integer.parseInt((String) newValue));
             ((EhApplication) getActivity().getApplication()).recreate();
             return true;
         } else if (Settings.KEY_APPLY_NAV_BAR_THEME_COLOR.equals(key)) {
@@ -86,6 +90,9 @@ public class EhFragment extends PreferenceFragmentCompat
             if (Boolean.TRUE.equals(newValue)) {
                 EhTagDatabase.update(getActivity());
             }
+        } else if (Settings.KEY_BLACK_DARK_THEME.equals(key)) {
+            ((EhApplication) getActivity().getApplication()).recreate();
+            return true;
         }
         return true;
     }
diff --git a/app/src/main/java/com/hippo/ehviewer/ui/scene/GalleryDetailScene.java b/app/src/main/java/com/hippo/ehviewer/ui/scene/GalleryDetailScene.java
index 76c64b82e..39d065325 100755
--- a/app/src/main/java/com/hippo/ehviewer/ui/scene/GalleryDetailScene.java
+++ b/app/src/main/java/com/hippo/ehviewer/ui/scene/GalleryDetailScene.java
@@ -515,7 +515,6 @@ public class GalleryDetailScene extends BaseScene implements View.OnClickListene
         mActionGroup = (ViewGroup) ViewUtils.$$(mHeader, R.id.action_card);
         mDownload = (TextView) ViewUtils.$$(mActionGroup, R.id.download);
         mRead = ViewUtils.$$(mActionGroup, R.id.read);
-        Ripple.addRipple(mOtherActions, isDarkTheme);
         Ripple.addRipple(mDownload, isDarkTheme);
         Ripple.addRipple(mRead, isDarkTheme);
         mUploader.setOnClickListener(this);
diff --git a/app/src/main/java/com/hippo/ehviewer/ui/scene/SolidScene.java b/app/src/main/java/com/hippo/ehviewer/ui/scene/SolidScene.java
index fe480e48e..0b34e24ec 100644
--- a/app/src/main/java/com/hippo/ehviewer/ui/scene/SolidScene.java
+++ b/app/src/main/java/com/hippo/ehviewer/ui/scene/SolidScene.java
@@ -45,10 +45,10 @@ public class SolidScene extends BaseScene {
                     break;
                 }
             case CHECK_STEP_WARNING:
-                if (Settings.getAskAnalytics()) {
+                /*if (Settings.getAskAnalytics()) {
                     startScene(new Announcer(AnalyticsScene.class).setArgs(args));
                     break;
-                }
+                }*/
             case CHECK_STEP_ANALYTICS:
                 if (EhUtils.needSignedIn(getContext2())) {
                     startScene(new Announcer(SignInScene.class).setArgs(args));
diff --git a/app/src/main/java/com/hippo/ehviewer/widget/ImageSearchLayout.java b/app/src/main/java/com/hippo/ehviewer/widget/ImageSearchLayout.java
index 69660f5ff..1319e0f15 100644
--- a/app/src/main/java/com/hippo/ehviewer/widget/ImageSearchLayout.java
+++ b/app/src/main/java/com/hippo/ehviewer/widget/ImageSearchLayout.java
@@ -85,6 +85,7 @@ public final class ImageSearchLayout extends LinearLayout implements View.OnClic
         setOrientation(VERTICAL);
         setDividerDrawable(context.getResources().getDrawable(R.drawable.spacer_keyline));
         setShowDividers(SHOW_DIVIDER_MIDDLE);
+        setClipToPadding(false);
         LayoutInflater.from(context).inflate(R.layout.widget_image_search, this);
 
         mPreview = (ImageView) ViewUtils.$$(this, R.id.preview);
diff --git a/app/src/main/java/com/hippo/ehviewer/widget/SearchBar.java b/app/src/main/java/com/hippo/ehviewer/widget/SearchBar.java
index 8b3e26d4c..680a8f3bd 100644
--- a/app/src/main/java/com/hippo/ehviewer/widget/SearchBar.java
+++ b/app/src/main/java/com/hippo/ehviewer/widget/SearchBar.java
@@ -42,8 +42,8 @@ import android.widget.ListView;
 import android.widget.TextView;
 
 import androidx.annotation.NonNull;
-import androidx.cardview.widget.CardView;
 
+import com.google.android.material.card.MaterialCardView;
 import com.hippo.ehviewer.R;
 import com.hippo.view.ViewTransition;
 import com.hippo.yorozuya.AnimationUtils;
@@ -54,7 +54,7 @@ import com.hippo.yorozuya.ViewUtils;
 import java.util.ArrayList;
 import java.util.List;
 
-public class SearchBar extends CardView implements View.OnClickListener,
+public class SearchBar extends MaterialCardView implements View.OnClickListener,
         TextView.OnEditorActionListener, TextWatcher,
         SearchEditText.SearchEditTextListener {
 
diff --git a/app/src/main/java/com/hippo/reveal/ViewAnimationUtils.java b/app/src/main/java/com/hippo/reveal/ViewAnimationUtils.java
index ecd9a7d35..d3428d737 100644
--- a/app/src/main/java/com/hippo/reveal/ViewAnimationUtils.java
+++ b/app/src/main/java/com/hippo/reveal/ViewAnimationUtils.java
@@ -28,8 +28,7 @@ public final class ViewAnimationUtils {
     public static final boolean API_SUPPORT_CIRCULAR_REVEAL =
             Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP;
     // http://developer.android.com/guide/topics/graphics/hardware-accel.html#unsupported
-    public static final boolean API_SUPPORT_CANVAS_CLIP_PATH =
-            Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2;
+
     private ViewAnimationUtils() {
     }
 
@@ -90,18 +89,12 @@ public final class ViewAnimationUtils {
 
         @Override
         public void onAnimationStart(Animator animation) {
-            if (!API_SUPPORT_CANVAS_CLIP_PATH) {
-                mView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
-            }
             mReveal.setRevealEnable(true);
         }
 
         @Override
         public void onAnimationEnd(Animator animation) {
             mReveal.setRevealEnable(false);
-            if (!API_SUPPORT_CANVAS_CLIP_PATH) {
-                mView.setLayerType(View.LAYER_TYPE_NONE, null);
-            }
         }
     }
 }
diff --git a/app/src/main/java/com/hippo/widget/lockpattern/LockPatternView.java b/app/src/main/java/com/hippo/widget/lockpattern/LockPatternView.java
index 24a6e8842..005cbaaf3 100644
--- a/app/src/main/java/com/hippo/widget/lockpattern/LockPatternView.java
+++ b/app/src/main/java/com/hippo/widget/lockpattern/LockPatternView.java
@@ -140,8 +140,7 @@ public class LockPatternView extends View {
         mPathPaint.setAntiAlias(true);
         mPathPaint.setDither(true);
 
-        mRegularColor = getResources().getColor(AttrResources.getAttrBoolean(context, R.attr.isLightTheme) ?
-                R.color.lock_pattern_view_regular_color_light : R.color.lock_pattern_view_regular_color_dark);
+        mRegularColor = getResources().getColor(AttrResources.getAttrBoolean(context, R.attr.isLightTheme) ? R.color.lock_pattern_view_regular_color_light : R.color.lock_pattern_view_regular_color_dark);
         mErrorColor = getResources().getColor(R.color.lock_pattern_view_error_color);
         mSuccessColor = getResources().getColor(R.color.lock_pattern_view_success_color);
 
diff --git a/app/src/main/res/anim/accelerate_quart.xml b/app/src/main/res/anim/accelerate_quart.xml
index 89e3a8b4c..1ebfe2d31 100644
--- a/app/src/main/res/anim/accelerate_quart.xml
+++ b/app/src/main/res/anim/accelerate_quart.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2016 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -15,6 +14,5 @@
   ~ limitations under the License.
   -->
 
-<accelerateInterpolator
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:factor="2.0"/>
+<accelerateInterpolator xmlns:android="http://schemas.android.com/apk/res/android"
+    android:factor="2.0" />
diff --git a/app/src/main/res/anim/decelerate_quart.xml b/app/src/main/res/anim/decelerate_quart.xml
index e495bc3dc..30d0c8081 100644
--- a/app/src/main/res/anim/decelerate_quart.xml
+++ b/app/src/main/res/anim/decelerate_quart.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2016 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -15,6 +14,5 @@
   ~ limitations under the License.
   -->
 
-<decelerateInterpolator
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:factor="2.0"/>
+<decelerateInterpolator xmlns:android="http://schemas.android.com/apk/res/android"
+    android:factor="2.0" />
diff --git a/app/src/main/res/anim/decelerate_quint.xml b/app/src/main/res/anim/decelerate_quint.xml
index 0a975d4ba..bb6e5a55c 100644
--- a/app/src/main/res/anim/decelerate_quint.xml
+++ b/app/src/main/res/anim/decelerate_quint.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2016 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -15,6 +14,5 @@
   ~ limitations under the License.
   -->
 
-<decelerateInterpolator
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:factor="2.5"/>
+<decelerateInterpolator xmlns:android="http://schemas.android.com/apk/res/android"
+    android:factor="2.5" />
diff --git a/app/src/main/res/anim/decelerate_terz.xml b/app/src/main/res/anim/decelerate_terz.xml
index b8289000d..42eb92099 100644
--- a/app/src/main/res/anim/decelerate_terz.xml
+++ b/app/src/main/res/anim/decelerate_terz.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2016 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -15,6 +14,5 @@
   ~ limitations under the License.
   -->
 
-<decelerateInterpolator
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:factor="1.5"/>
+<decelerateInterpolator xmlns:android="http://schemas.android.com/apk/res/android"
+    android:factor="1.5" />
diff --git a/app/src/main/res/anim/scene_close_enter.xml b/app/src/main/res/anim/scene_close_enter.xml
index 8468ce8aa..a640293f0 100644
--- a/app/src/main/res/anim/scene_close_enter.xml
+++ b/app/src/main/res/anim/scene_close_enter.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2016 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -15,16 +14,15 @@
   ~ limitations under the License.
   -->
 
-<set
-    xmlns:android="http://schemas.android.com/apk/res/android">
+<set xmlns:android="http://schemas.android.com/apk/res/android">
 
     <alpha
-        android:fromAlpha="0.7"
-        android:toAlpha="1.0"
-        android:fillEnabled="true"
-        android:fillBefore="true"
+        android:duration="250"
         android:fillAfter="true"
+        android:fillBefore="true"
+        android:fillEnabled="true"
+        android:fromAlpha="0.7"
         android:interpolator="@anim/decelerate_terz"
-        android:duration="250"/>
+        android:toAlpha="1.0" />
 
 </set>
diff --git a/app/src/main/res/anim/scene_close_exit.xml b/app/src/main/res/anim/scene_close_exit.xml
index 5a9230cfe..23c036195 100644
--- a/app/src/main/res/anim/scene_close_exit.xml
+++ b/app/src/main/res/anim/scene_close_exit.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2016 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -15,27 +14,26 @@
   ~ limitations under the License.
   -->
 
-<set
-    xmlns:android="http://schemas.android.com/apk/res/android"
+<set xmlns:android="http://schemas.android.com/apk/res/android"
     android:shareInterpolator="false">
 
     <alpha
-        android:fromAlpha="1.0"
-        android:toAlpha="0.0"
-        android:interpolator="@android:interpolator/linear"
-        android:fillEnabled="true"
-        android:fillBefore="false"
+        android:duration="150"
         android:fillAfter="true"
+        android:fillBefore="false"
+        android:fillEnabled="true"
+        android:fromAlpha="1.0"
+        android:interpolator="@android:interpolator/linear"
         android:startOffset="100"
-        android:duration="150"/>
+        android:toAlpha="0.0" />
 
     <translate
-        android:fromYDelta="0%"
-        android:toYDelta="8%"
-        android:fillEnabled="true"
-        android:fillBefore="true"
+        android:duration="250"
         android:fillAfter="true"
+        android:fillBefore="true"
+        android:fillEnabled="true"
+        android:fromYDelta="0%"
         android:interpolator="@anim/accelerate_quart"
-        android:duration="250"/>
+        android:toYDelta="8%" />
 
 </set>
diff --git a/app/src/main/res/anim/scene_open_enter.xml b/app/src/main/res/anim/scene_open_enter.xml
index 847f43b5f..5b11c3e1e 100644
--- a/app/src/main/res/anim/scene_open_enter.xml
+++ b/app/src/main/res/anim/scene_open_enter.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2016 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -15,26 +14,25 @@
   ~ limitations under the License.
   -->
 
-<set
-    xmlns:android="http://schemas.android.com/apk/res/android"
+<set xmlns:android="http://schemas.android.com/apk/res/android"
     android:shareInterpolator="false">
 
     <alpha
-        android:fromAlpha="0.0"
-        android:toAlpha="1.0"
-        android:interpolator="@anim/decelerate_quart"
-        android:fillEnabled="true"
-        android:fillBefore="false"
+        android:duration="200"
         android:fillAfter="true"
-        android:duration="200"/>
+        android:fillBefore="false"
+        android:fillEnabled="true"
+        android:fromAlpha="0.0"
+        android:interpolator="@anim/decelerate_quart"
+        android:toAlpha="1.0" />
 
     <translate
-        android:fromYDelta="8%"
-        android:toYDelta="0"
-        android:fillEnabled="true"
-        android:fillBefore="true"
+        android:duration="350"
         android:fillAfter="true"
+        android:fillBefore="true"
+        android:fillEnabled="true"
+        android:fromYDelta="8%"
         android:interpolator="@anim/decelerate_quint"
-        android:duration="350"/>
+        android:toYDelta="0" />
 
 </set>
diff --git a/app/src/main/res/anim/scene_open_exit.xml b/app/src/main/res/anim/scene_open_exit.xml
index 6d2a3f2fa..c637be392 100644
--- a/app/src/main/res/anim/scene_open_exit.xml
+++ b/app/src/main/res/anim/scene_open_exit.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2016 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -15,16 +14,15 @@
   ~ limitations under the License.
   -->
 
-<set
-    xmlns:android="http://schemas.android.com/apk/res/android">
+<set xmlns:android="http://schemas.android.com/apk/res/android">
 
     <alpha
-        android:fromAlpha="1.0"
-        android:toAlpha="0.7"
-        android:fillEnabled="true"
-        android:fillBefore="false"
+        android:duration="217"
         android:fillAfter="true"
+        android:fillBefore="false"
+        android:fillEnabled="true"
+        android:fromAlpha="1.0"
         android:interpolator="@android:interpolator/accelerate_decelerate"
-        android:duration="217"/>
+        android:toAlpha="0.7" />
 
 </set>
diff --git a/app/src/main/res/color/content_reactive_dark.xml b/app/src/main/res/color/content_reactive.xml
similarity index 79%
rename from app/src/main/res/color/content_reactive_dark.xml
rename to app/src/main/res/color/content_reactive.xml
index 37c7629d5..531c16d48 100644
--- a/app/src/main/res/color/content_reactive_dark.xml
+++ b/app/src/main/res/color/content_reactive.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2018 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -17,7 +16,7 @@
 
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
 
-    <item android:state_activated="true" android:color="@color/content_activated_dark"/>
-    <item android:color="@color/content_dark"/>
+    <item android:color="@color/content_activated" android:state_activated="true" />
+    <item android:color="@color/content" />
 
 </selector>
diff --git a/app/src/main/res/color/content_reactive_black.xml b/app/src/main/res/color/content_reactive_black.xml
index 433e7e6af..63330b619 100644
--- a/app/src/main/res/color/content_reactive_black.xml
+++ b/app/src/main/res/color/content_reactive_black.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2018 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -17,7 +16,7 @@
 
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
 
-    <item android:state_activated="true" android:color="@color/content_activated_black"/>
-    <item android:color="@color/content_black"/>
+    <item android:color="@color/content_activated_black" android:state_activated="true" />
+    <item android:color="@color/content_black" />
 
 </selector>
diff --git a/app/src/main/res/color/content_reactive_light.xml b/app/src/main/res/color/content_reactive_light.xml
deleted file mode 100644
index 37b385e37..000000000
--- a/app/src/main/res/color/content_reactive_light.xml
+++ /dev/null
@@ -1,23 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright 2018 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.
-  -->
-
-<selector xmlns:android="http://schemas.android.com/apk/res/android">
-
-    <item android:state_activated="true" android:color="@color/content_activated_light"/>
-    <item android:color="@color/content_light"/>
-
-</selector>
diff --git a/app/src/main/res/color/primary_text_material_black.xml b/app/src/main/res/color/primary_text_material_black.xml
index 456b910e3..ea0bbda03 100644
--- a/app/src/main/res/color/primary_text_material_black.xml
+++ b/app/src/main/res/color/primary_text_material_black.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2018 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,6 +15,6 @@
   -->
 
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:state_enabled="false" android:color="@color/primary_text_disabled_material_black"/>
-    <item android:color="@color/primary_text_default_material_black"/>
+    <item android:color="@color/primary_text_disabled_material_black" android:state_enabled="false" />
+    <item android:color="@color/primary_text_default_material_black" />
 </selector>
diff --git a/app/src/main/res/drawable/divider_gallery_detail_light.xml b/app/src/main/res/drawable/divider_gallery_detail.xml
similarity index 94%
rename from app/src/main/res/drawable/divider_gallery_detail_light.xml
rename to app/src/main/res/drawable/divider_gallery_detail.xml
index d28ede080..557dfc2a8 100644
--- a/app/src/main/res/drawable/divider_gallery_detail_light.xml
+++ b/app/src/main/res/drawable/divider_gallery_detail.xml
@@ -19,7 +19,7 @@
     xmlns:android="http://schemas.android.com/apk/res/android">
 
     <solid
-        android:color="@color/divider_light"/>
+        android:color="@color/divider"/>
 
     <size
         android:height="1dp"/>
diff --git a/app/src/main/res/drawable/divider_gallery_detail_dark.xml b/app/src/main/res/drawable/divider_gallery_detail_dark.xml
index 0924cb242..1096a6643 100644
--- a/app/src/main/res/drawable/divider_gallery_detail_dark.xml
+++ b/app/src/main/res/drawable/divider_gallery_detail_dark.xml
@@ -19,7 +19,7 @@
     xmlns:android="http://schemas.android.com/apk/res/android">
 
     <solid
-        android:color="@color/divider_dark"/>
+        android:color="@color/divider_black"/>
 
     <size
         android:height="1dp"/>
diff --git a/app/src/main/res/drawable/shadow_bottom.xml b/app/src/main/res/drawable/shadow_bottom.xml
index 680f43191..9ab24f76e 100644
--- a/app/src/main/res/drawable/shadow_bottom.xml
+++ b/app/src/main/res/drawable/shadow_bottom.xml
@@ -21,7 +21,7 @@
 
     <gradient
         android:startColor="@android:color/transparent"
-        android:endColor="@color/shadow_light"
+        android:endColor="@color/shadow"
         android:angle="90"/>
 
 </shape>
diff --git a/app/src/main/res/drawable/shadow_top.xml b/app/src/main/res/drawable/shadow_top.xml
index 4a4014fd5..33d42a312 100644
--- a/app/src/main/res/drawable/shadow_top.xml
+++ b/app/src/main/res/drawable/shadow_top.xml
@@ -21,7 +21,7 @@
 
     <gradient
         android:startColor="@android:color/transparent"
-        android:endColor="@color/shadow_light"
+        android:endColor="@color/shadow"
         android:angle="270"/>
 
 </shape>
diff --git a/app/src/main/res/layout-v21/drawer_list.xml b/app/src/main/res/layout-v21/drawer_list.xml
index 1a461448a..8f6a8982b 100644
--- a/app/src/main/res/layout-v21/drawer_list.xml
+++ b/app/src/main/res/layout-v21/drawer_list.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2016 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -15,22 +14,20 @@
   ~ limitations under the License.
   -->
 
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical">
 
-    <androidx.appcompat.widget.Toolbar
-        xmlns:app="http://schemas.android.com/apk/res-auto"
+    <androidx.appcompat.widget.Toolbar xmlns:app="http://schemas.android.com/apk/res-auto"
         android:id="@+id/toolbar"
-        android:layout_height="?attr/actionBarSize"
         android:layout_width="match_parent"
+        android:layout_height="?attr/actionBarSize"
         android:background="?attr/toolbarColor"
         android:elevation="8dp"
         android:saveEnabled="false"
         android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
-        app:popupTheme="?attr/toolbarPopupTheme"/>
+        app:popupTheme="?attr/toolbarPopupTheme" />
 
     <FrameLayout
         android:layout_width="match_parent"
@@ -42,12 +39,12 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_gravity="center"
-            android:visibility="gone"/>
+            android:visibility="gone" />
 
         <ListView
             android:id="@+id/list_view"
             android:layout_width="match_parent"
-            android:layout_height="match_parent"/>
+            android:layout_height="match_parent" />
 
     </FrameLayout>
 </LinearLayout>
diff --git a/app/src/main/res/layout-v21/drawer_list_rv.xml b/app/src/main/res/layout-v21/drawer_list_rv.xml
index baf117a7d..16fe95862 100644
--- a/app/src/main/res/layout-v21/drawer_list_rv.xml
+++ b/app/src/main/res/layout-v21/drawer_list_rv.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2016 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -15,22 +14,20 @@
   ~ limitations under the License.
   -->
 
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical">
 
-    <androidx.appcompat.widget.Toolbar
-        xmlns:app="http://schemas.android.com/apk/res-auto"
+    <androidx.appcompat.widget.Toolbar xmlns:app="http://schemas.android.com/apk/res-auto"
         android:id="@+id/toolbar"
-        android:layout_height="?attr/actionBarSize"
         android:layout_width="match_parent"
+        android:layout_height="?attr/actionBarSize"
         android:background="?attr/toolbarColor"
         android:elevation="8dp"
         android:saveEnabled="false"
         android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
-        app:popupTheme="?attr/toolbarPopupTheme"/>
+        app:popupTheme="?attr/toolbarPopupTheme" />
 
     <FrameLayout
         android:layout_width="match_parent"
@@ -42,12 +39,12 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_gravity="center"
-            android:visibility="gone"/>
+            android:visibility="gone" />
 
         <com.hippo.easyrecyclerview.EasyRecyclerView
             android:id="@+id/recycler_view_drawer"
             android:layout_width="match_parent"
-            android:layout_height="match_parent"/>
+            android:layout_height="match_parent" />
 
     </FrameLayout>
 </LinearLayout>
diff --git a/app/src/main/res/layout-v21/preference_widget_seekbar.xml b/app/src/main/res/layout-v21/preference_widget_seekbar.xml
index ed4184edb..bdd523fee 100644
--- a/app/src/main/res/layout-v21/preference_widget_seekbar.xml
+++ b/app/src/main/res/layout-v21/preference_widget_seekbar.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2016 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -15,16 +14,15 @@
   ~ limitations under the License.
   -->
 
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:minHeight="?android:attr/listPreferredItemHeightSmall"
-    android:gravity="center_vertical"
-    android:paddingLeft="?android:attr/listPreferredItemPaddingLeft"
-    android:paddingRight="?android:attr/listPreferredItemPaddingRight"
     android:background="?android:attr/activatedBackgroundIndicator"
-    android:clipToPadding="false">
+    android:clipToPadding="false"
+    android:gravity="center_vertical"
+    android:minHeight="?android:attr/listPreferredItemHeightSmall"
+    android:paddingLeft="?android:attr/listPreferredItemPaddingLeft"
+    android:paddingRight="?android:attr/listPreferredItemPaddingRight">
 
     <RelativeLayout
         android:layout_width="0dp"
@@ -37,9 +35,9 @@
             android:id="@android:id/title"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
+            android:ellipsize="marquee"
             android:singleLine="true"
-            android:textAppearance="?android:attr/textAppearanceListItem"
-            android:ellipsize="marquee" />
+            android:textAppearance="?android:attr/textAppearanceListItem" />
 
         <TextView
             android:id="@android:id/summary"
@@ -47,9 +45,9 @@
             android:layout_height="wrap_content"
             android:layout_below="@android:id/title"
             android:layout_alignLeft="@android:id/title"
+            android:maxLines="10"
             android:textAppearance="?android:attr/textAppearanceListItemSecondary"
-            android:textColor="?android:attr/textColorSecondary"
-            android:maxLines="10" />
+            android:textColor="?android:attr/textColorSecondary" />
 
         <!-- Preference should place its actual preference widget here. -->
         <LinearLayout
@@ -58,17 +56,17 @@
             android:layout_height="match_parent"
             android:layout_below="@android:id/summary"
             android:layout_alignLeft="@android:id/title"
-            android:minWidth="@dimen/preference_widget_width"
             android:gravity="center"
-            android:orientation="vertical"/>
+            android:minWidth="@dimen/preference_widget_width"
+            android:orientation="vertical" />
 
         <SeekBar
             android:id="@+id/seekbar"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_below="@android:id/summary"
-            android:layout_toRightOf="@android:id/widget_frame"
-            android:layout_alignParentRight="true"/>
+            android:layout_alignParentRight="true"
+            android:layout_toRightOf="@android:id/widget_frame" />
 
     </RelativeLayout>
 </LinearLayout>
diff --git a/app/src/main/res/layout-v21/scene_toolbar.xml b/app/src/main/res/layout-v21/scene_toolbar.xml
index 02cb0ebdd..28847f374 100644
--- a/app/src/main/res/layout-v21/scene_toolbar.xml
+++ b/app/src/main/res/layout-v21/scene_toolbar.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2016 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -15,26 +14,24 @@
   ~ limitations under the License.
   -->
 
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical">
 
-    <androidx.appcompat.widget.Toolbar
-        xmlns:app="http://schemas.android.com/apk/res-auto"
+    <androidx.appcompat.widget.Toolbar xmlns:app="http://schemas.android.com/apk/res-auto"
         android:id="@+id/toolbar"
-        android:layout_height="?attr/actionBarSize"
         android:layout_width="match_parent"
+        android:layout_height="?attr/actionBarSize"
         android:background="?attr/toolbarColor"
         android:elevation="8dp"
         android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
-        app:popupTheme="?attr/toolbarPopupTheme"/>
+        app:popupTheme="?attr/toolbarPopupTheme" />
 
     <FrameLayout
         android:id="@+id/content_panel"
         android:layout_width="match_parent"
         android:layout_height="0dp"
-        android:layout_weight="1"/>
+        android:layout_weight="1" />
 
 </LinearLayout>
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index ce7f96372..69186dd7f 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -36,15 +36,7 @@
             android:layout_height="match_parent"
             android:layout_gravity="start"
             app:headerLayout="@layout/nav_header_main"
-            app:menu="@menu/nav_drawer_main">
-
-            <Button
-                android:id="@+id/change_theme"
-                style="@style/Widget.MaterialComponents.Button.TextButton"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_gravity="bottom|center" />
-        </com.google.android.material.navigation.NavigationView>
+            app:menu="@menu/nav_drawer_main" />
 
 
         <com.hippo.ehviewer.widget.EhDrawerView
diff --git a/app/src/main/res/layout/gallery_detail_header.xml b/app/src/main/res/layout/gallery_detail_header.xml
index 5761e8638..d1fc6c1f8 100644
--- a/app/src/main/res/layout/gallery_detail_header.xml
+++ b/app/src/main/res/layout/gallery_detail_header.xml
@@ -120,7 +120,7 @@
 
         </RelativeLayout>
 
-        <androidx.cardview.widget.CardView
+        <com.google.android.material.card.MaterialCardView
             xmlns:app="http://schemas.android.com/apk/res-auto"
             android:id="@+id/action_card"
             android:layout_width="match_parent"
@@ -160,6 +160,6 @@
                     android:text="@string/read"/>
 
             </LinearLayout>
-        </androidx.cardview.widget.CardView>
+        </com.google.android.material.card.MaterialCardView>
     </LinearLayout>
 </FrameLayout>
diff --git a/app/src/main/res/layout/item_gallery_grid.xml b/app/src/main/res/layout/item_gallery_grid.xml
index cb4d947a9..84d5cc122 100644
--- a/app/src/main/res/layout/item_gallery_grid.xml
+++ b/app/src/main/res/layout/item_gallery_grid.xml
@@ -15,7 +15,7 @@
   ~ limitations under the License.
   -->
 
-<androidx.cardview.widget.CardView
+<com.google.android.material.card.MaterialCardView
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
@@ -50,4 +50,4 @@
         android:textStyle="bold"
         tools:ignore="SpUsage"/>
 
-</androidx.cardview.widget.CardView>
+</com.google.android.material.card.MaterialCardView>
diff --git a/app/src/main/res/layout/item_gallery_list.xml b/app/src/main/res/layout/item_gallery_list.xml
index df494ef0a..0a9f2d8a3 100644
--- a/app/src/main/res/layout/item_gallery_list.xml
+++ b/app/src/main/res/layout/item_gallery_list.xml
@@ -14,7 +14,7 @@
   ~ limitations under the License.
   -->
 
-<androidx.cardview.widget.CardView
+<com.google.android.material.card.MaterialCardView
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
@@ -127,4 +127,4 @@
 
         </LinearLayout>
     </RelativeLayout>
-</androidx.cardview.widget.CardView>
+</com.google.android.material.card.MaterialCardView>
diff --git a/app/src/main/res/layout/scene_login.xml b/app/src/main/res/layout/scene_login.xml
index 37ac255c8..0343a1f44 100644
--- a/app/src/main/res/layout/scene_login.xml
+++ b/app/src/main/res/layout/scene_login.xml
@@ -47,6 +47,7 @@
                 android:layout_height="wrap_content"
                 android:layout_gravity="center_horizontal"
                 android:minWidth="@dimen/single_max_width"
+                style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
                 android:hint="@string/username">
 
                 <com.hippo.widget.HackyTextInputEditText
@@ -67,6 +68,7 @@
                 android:layout_gravity="center_horizontal"
                 android:minWidth="@dimen/single_max_width"
                 android:hint="@string/password"
+                style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
                 app:passwordToggleEnabled="true">
 
                 <com.hippo.widget.HackyTextInputEditText
@@ -89,7 +91,7 @@
                 android:id="@+id/buttonPanel"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
-                android:orientation="horizontal"
+                android:orientation="vertical"
                 android:paddingLeft="12dp"
                 android:paddingRight="12dp"
                 android:paddingTop="4dp"
@@ -97,26 +99,23 @@
                 android:gravity="bottom"
                 style="?attr/buttonBarStyle">
 
-                <Button
-                    android:id="@+id/register"
-                    style="?attr/buttonBarNegativeButtonStyle"
-                    android:layout_width="0dp"
-                    android:layout_height="wrap_content"
-                    android:layout_weight="1"
-                    android:textColor="?attr/colorAccent"
-                    android:textStyle="bold"
-                    android:text="@string/register"/>
-
                 <Button
                     android:id="@+id/sign_in"
-                    style="?attr/buttonBarPositiveButtonStyle"
-                    android:layout_width="0dp"
+                    style="@style/Widget.MaterialComponents.Button"
+                    android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_weight="1"
-                    android:textColor="?attr/colorPrimary"
                     android:textStyle="bold"
                     android:text="@string/sign_in"/>
 
+                <Button
+                    android:id="@+id/register"
+                    style="@style/Widget.MaterialComponents.Button.OutlinedButton"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:textStyle="bold"
+                    android:text="@string/register"/>
             </LinearLayout>
 
             <TextView
diff --git a/app/src/main/res/layout/scene_select_site.xml b/app/src/main/res/layout/scene_select_site.xml
index 741691e82..b89205a04 100644
--- a/app/src/main/res/layout/scene_select_site.xml
+++ b/app/src/main/res/layout/scene_select_site.xml
@@ -103,19 +103,12 @@
         android:paddingBottom="4dp"
         android:gravity="bottom"
         style="?attr/buttonBarStyle">
-
-        <View
-            android:layout_width="0dp"
-            android:layout_height="0dp"
-            android:layout_weight="1"/>
-
         <Button
             android:id="@+id/ok"
-            style="?attr/buttonBarPositiveButtonStyle"
+            style="@style/Widget.MaterialComponents.Button"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_weight="1"
-            android:textColor="?attr/colorPrimary"
             android:textStyle="bold"
             android:text="@android:string/ok"/>
 
diff --git a/app/src/main/res/layout/scene_warning.xml b/app/src/main/res/layout/scene_warning.xml
index 2dfc62f42..eea0f9ecb 100644
--- a/app/src/main/res/layout/scene_warning.xml
+++ b/app/src/main/res/layout/scene_warning.xml
@@ -60,7 +60,7 @@
         android:id="@+id/buttonPanel"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:orientation="horizontal"
+        android:orientation="vertical"
         android:paddingLeft="12dp"
         android:paddingRight="12dp"
         android:paddingTop="4dp"
@@ -68,25 +68,23 @@
         android:gravity="bottom"
         style="?attr/buttonBarStyle">
 
-        <Button
-            android:id="@+id/reject"
-            style="?attr/buttonBarNegativeButtonStyle"
-            android:layout_width="0dp"
-            android:layout_height="wrap_content"
-            android:layout_weight="1"
-            android:textColor="?attr/colorAccent"
-            android:textStyle="bold"
-            android:text="@string/reject"/>
-
         <Button
             android:id="@+id/accept"
-            style="?attr/buttonBarPositiveButtonStyle"
-            android:layout_width="0dp"
+            style="@style/Widget.MaterialComponents.Button"
+            android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_weight="1"
-            android:textColor="?attr/colorPrimary"
             android:textStyle="bold"
             android:text="@string/accept"/>
 
+        <Button
+            android:id="@+id/reject"
+            style="@style/Widget.MaterialComponents.Button.OutlinedButton"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:textStyle="bold"
+            android:text="@string/reject"/>
+
     </LinearLayout>
 </LinearLayout>
diff --git a/app/src/main/res/layout/search_action.xml b/app/src/main/res/layout/search_action.xml
index ae75a85ce..87fc9ea34 100644
--- a/app/src/main/res/layout/search_action.xml
+++ b/app/src/main/res/layout/search_action.xml
@@ -28,7 +28,7 @@
         android:layout_weight="1"
         android:textColor="?attr/colorPrimary"
         android:textStyle="bold"
-        style="?attr/buttonBarPositiveButtonStyle"/>
+        style="@style/Widget.MaterialComponents.Button.TextButton"/>
 
     <Space
         android:layout_width="0dp"
diff --git a/app/src/main/res/layout/search_category.xml b/app/src/main/res/layout/search_category.xml
index c527b2b90..633c0f78a 100644
--- a/app/src/main/res/layout/search_category.xml
+++ b/app/src/main/res/layout/search_category.xml
@@ -14,7 +14,7 @@
   ~ limitations under the License.
   -->
 
-<androidx.cardview.widget.CardView
+<com.google.android.material.card.MaterialCardView
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
@@ -42,4 +42,4 @@
             android:layout_height="wrap_content"/>
 
     </LinearLayout>
-</androidx.cardview.widget.CardView>
+</com.google.android.material.card.MaterialCardView>
diff --git a/app/src/main/res/layout/search_normal.xml b/app/src/main/res/layout/search_normal.xml
index b4db5c097..43fd8eb82 100644
--- a/app/src/main/res/layout/search_normal.xml
+++ b/app/src/main/res/layout/search_normal.xml
@@ -72,6 +72,7 @@
             android:layout_width="36dp"
             android:layout_height="36dp"
             android:padding="6dp"
+            android:background="?selectableItemBackgroundBorderless"
             app:srcCompat="@drawable/v_help_circle_x24"/>
 
         <Space
diff --git a/app/src/main/res/layout/widget_image_search.xml b/app/src/main/res/layout/widget_image_search.xml
index b3698e63e..992fb12db 100644
--- a/app/src/main/res/layout/widget_image_search.xml
+++ b/app/src/main/res/layout/widget_image_search.xml
@@ -30,11 +30,11 @@
 
     <Button
         android:id="@+id/select_image"
-        android:layout_width="wrap_content"
+        android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_gravity="center_horizontal"
         android:text="@string/select_image"
-        style="?attr/buttonBarButtonStyle"/>
+        style="@style/Widget.MaterialComponents.Button"/>
 
     <TableLayout
         android:layout_width="match_parent"
diff --git a/app/src/main/res/values-night/colors.xml b/app/src/main/res/values-night/colors.xml
new file mode 100644
index 000000000..c217ea9f9
--- /dev/null
+++ b/app/src/main/res/values-night/colors.xml
@@ -0,0 +1,130 @@
+<?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>
+
+    <color name="primary_drawable">#ffffffff</color>
+    <color name="secondary_drawable">#4dffffff</color>
+    <color name="background">#ff303030</color>
+
+    <color name="content">@color/grey_825</color>
+    <color name="content_activated">@color/grey_600</color>
+    <color name="widget">@color/grey_700</color>
+    <color name="progress">@color/grey_600</color>
+    <color name="tag_group_background">@color/grey_775</color>
+    <color name="tag_background">@color/grey_775</color>
+    <color name="gallery_detail_button_background">@color/grey_800</color>
+    <color name="red_500">#fff44336</color>
+    <color name="teal_500">#ff009688</color>
+    <color name="teal_700">#ff00796b</color>
+    <color name="purple_500">#ff9c27b0</color>
+    <color name="purple_a200">#ffe040fb</color>
+    <color name="purple_a400">#ffd500f9</color>
+    <color name="purple_a700">#ffaa00ff</color>
+    <color name="cyan_600">#ff00acc1</color>
+    <color name="light_green_600">#ff7cb342</color>
+    <color name="yellow_800">#fff9a825</color>
+    <color name="deep_orange_400">#ffff7043</color>
+    <color name="grey_975">#ff080808</color>
+    <color name="grey_950">#ff111111</color>
+    <color name="grey_925">#ff191919</color>
+    <color name="grey_900">#ff212121</color>
+    <color name="grey_875">#ff292929</color>
+    <color name="grey_850">#ff323232</color>
+    <color name="grey_825">#ff3a3a3a</color>
+    <color name="grey_800">#ff424242</color>
+    <color name="grey_775">#ff4a4a4a</color>
+    <color name="grey_750">#ff525252</color>
+    <color name="grey_725">#ff595959</color>
+    <color name="grey_700">#ff616161</color>
+    <color name="grey_675">#ff666666</color>
+    <color name="grey_650">#ff6b6b6b</color>
+    <color name="grey_625">#ff707070</color>
+    <color name="grey_600">#ff757575</color>
+    <color name="grey_575">#ff7f7f7f</color>
+    <color name="grey_550">#ff8a8a8a</color>
+    <color name="grey_525">#ff949494</color>
+    <color name="grey_500">#ff9e9e9e</color>
+    <color name="grey_475">#ffa6a6a6</color>
+    <color name="grey_450">#ffaeaeae</color>
+    <color name="grey_425">#ffb5b5b5</color>
+    <color name="grey_400">#ffbdbdbd</color>
+    <color name="grey_375">#ffc6c6c6</color>
+    <color name="grey_350">#ffcfcfcf</color>
+    <color name="grey_325">#ffd7d7d7</color>
+    <color name="grey_300">#ffe0e0e0</color>
+    <color name="grey_275">#ffe4e4e4</color>
+    <color name="grey_250">#ffe7e7e7</color>
+    <color name="grey_225">#ffebebeb</color>
+    <color name="grey_200">#ffeeeeee</color>
+    <color name="grey_175">#fff0f0f0</color>
+    <color name="grey_150">#fff2f2f2</color>
+    <color name="grey_125">#fff3f3f3</color>
+    <color name="grey_100">#fff5f5f5</color>
+    <color name="brown_500">#ff795548</color>
+
+    <color name="colorPrimary">@color/teal_500</color>
+    <color name="colorPrimaryDark">@color/teal_700</color>
+    <color name="colorAccent">@color/purple_a200</color>
+
+    <color name="translucent_bg">#80ffffff</color>
+
+    <color name="loading_indicator_red">#ffe53935</color>
+    <color name="loading_indicator_purple">@color/purple_a700</color>
+    <color name="loading_indicator_blue">#ff1d87e4</color>
+    <color name="loading_indicator_cyan">@color/cyan_600</color>
+    <color name="loading_indicator_green">@color/light_green_600</color>
+    <color name="loading_indicator_yellow">@color/yellow_800</color>
+    <color name="loading_indicator_orange">@color/deep_orange_400</color>
+
+    <color name="check_text_view_mask">#8a000000</color>
+
+    <!-- Red -->
+    <color name="doujinshi">#fff44336</color>
+    <!-- Orange -->
+    <color name="manga">#ffff9800</color>
+    <!-- Yellow 700 -->
+    <color name="artist_cg">#ffFbc02d</color>
+    <!-- Green -->
+    <color name="game_cg">#ff4caf50</color>
+    <!-- Light Green -->
+    <color name="western">#ff8bc34a</color>
+    <!-- Blue -->
+    <color name="non_h">#ff2196f3</color>
+    <!-- Indigo -->
+    <color name="image_set">#ff3f51b5</color>
+    <!-- Purple -->
+    <color name="cosplay">#ff9c27b0</color>
+    <!-- Deep Purple 300 -->
+    <color name="asian_porn">#ff9575cd</color>
+    <!-- Pink 300 -->
+    <color name="misc">#fff06292</color>
+    <color name="unknown_bg">@android:color/black</color>
+
+    <!-- divider -->
+    <color name="divider">#20ffffff</color>
+
+    <!-- shadow -->
+    <color name="shadow">#38000000</color>
+
+    <color name="big_icon">#1f000000</color>
+
+    <color name="guide_bg">#e5009688</color>
+
+
+    <!--Shortcut background-->
+    <color name="shortcut_bg">#F5F5F5</color>
+</resources>
diff --git a/app/src/main/res/values-night/themes.xml b/app/src/main/res/values-night/themes.xml
new file mode 100644
index 000000000..6ca019b2f
--- /dev/null
+++ b/app/src/main/res/values-night/themes.xml
@@ -0,0 +1,4 @@
+<resources>
+
+    <style name="ToolbarPopupTheme" parent="ThemeOverlay.MaterialComponents.Light"/>
+</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-v19/themes.xml b/app/src/main/res/values-v19/themes.xml
deleted file mode 100644
index bc25064bf..000000000
--- a/app/src/main/res/values-v19/themes.xml
+++ /dev/null
@@ -1,38 +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>
-
-    <style name="AppTheme.NoActionBar.Translucent">
-        <item name="android:windowTranslucentStatus">true</item>
-        <item name="android:windowTranslucentNavigation">false</item>
-        <item name="android:windowContentOverlay">@null</item>
-    </style>
-
-    <style name="AppTheme.Dark.NoActionBar.Translucent">
-        <item name="android:windowTranslucentStatus">true</item>
-        <item name="android:windowTranslucentNavigation">false</item>
-        <item name="android:windowContentOverlay">@null</item>
-    </style>
-
-    <style name="AppTheme.Black.NoActionBar.Translucent">
-        <item name="android:windowTranslucentStatus">true</item>
-        <item name="android:windowTranslucentNavigation">false</item>
-        <item name="android:windowContentOverlay">@null</item>
-    </style>
-
-</resources>
diff --git a/app/src/main/res/values-v21/themes.xml b/app/src/main/res/values-v21/themes.xml
deleted file mode 100644
index a8562186b..000000000
--- a/app/src/main/res/values-v21/themes.xml
+++ /dev/null
@@ -1,47 +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>
-
-    <style name="AppTheme" parent="BaseTheme">
-        <item name="android:colorEdgeEffect">?attr/colorEdgeEffect</item>
-    </style>
-
-    <style name="AppTheme.Dark" parent="BaseTheme.Dark">
-        <item name="android:colorEdgeEffect">?attr/colorEdgeEffect</item>
-    </style>
-
-    <style name="AppTheme.Black" parent="BaseTheme.Black">
-        <item name="android:colorEdgeEffect">?attr/colorEdgeEffect</item>
-    </style>
-
-    <style name="AppTheme.NoActionBar.Translucent">
-        <item name="android:windowDrawsSystemBarBackgrounds">true</item>
-        <item name="android:statusBarColor">@android:color/transparent</item>
-    </style>
-
-    <style name="AppTheme.Dark.NoActionBar.Translucent">
-        <item name="android:windowDrawsSystemBarBackgrounds">true</item>
-        <item name="android:statusBarColor">@android:color/transparent</item>
-    </style>
-
-    <style name="AppTheme.Black.NoActionBar.Translucent">
-        <item name="android:windowDrawsSystemBarBackgrounds">true</item>
-        <item name="android:statusBarColor">@android:color/transparent</item>
-    </style>
-
-</resources>
diff --git a/app/src/main/res/values/arrays.xml b/app/src/main/res/values/arrays.xml
index 29f5eaded..8838f8269 100644
--- a/app/src/main/res/values/arrays.xml
+++ b/app/src/main/res/values/arrays.xml
@@ -282,4 +282,15 @@
         <item>SOCKS</item>
     </string-array>
 
+    <string-array name="night_mode_entries" translatable="false">
+        <item>@string/follow_system</item>
+        <item>@string/settings_eh_theme_light</item>
+        <item>@string/settings_eh_theme_dark</item>
+    </string-array>
+
+    <string-array name="night_mode_values">
+        <item>-1</item>
+        <item>1</item>
+        <item>2</item>
+    </string-array>
 </resources>
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index 72e6f71f7..cff4ec29c 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2016 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -17,12 +16,14 @@
 
 <resources>
 
-    <!-- primary_drawable_light     54% -->
-    <!-- secondary_drawable_light   26% -->
+    <!-- primary_drawable     54% -->
+    <!-- secondary_drawable   26% -->
     <!-- primary_drawable_dark     100% -->
     <!-- secondary_drawable_dark    30% -->
     <!-- primary_drawable_black     80% -->
     <!-- secondary_drawable_black   24% -->
+    <color name="primary_drawable">#8a000000</color>
+    <color name="secondary_drawable">#42000000</color>
     <color name="primary_drawable_light">#8a000000</color>
     <color name="secondary_drawable_light">#42000000</color>
     <color name="primary_drawable_dark">#ffffffff</color>
@@ -33,35 +34,27 @@
     <color name="primary_text_default_material_black">#d9ffffff</color>
     <color name="primary_text_disabled_material_black">#4dffffff</color>
 
-    <color name="background_dark">#ff303030</color>
-    <color name="background_light">#fffafafa</color>
+    <color name="background">#fffafafa</color>
 
-    <color name="content_light">@color/grey_100</color>
-    <color name="content_dark">@color/grey_825</color>
+    <color name="content">#fff</color>
     <color name="content_black">@color/grey_925</color>
 
-    <color name="content_activated_light">@color/grey_300</color>
-    <color name="content_activated_dark">@color/grey_600</color>
+    <color name="content_activated">@color/grey_300</color>
     <color name="content_activated_black">@color/grey_700</color>
 
-    <color name="widget_light">@color/grey_200</color>
-    <color name="widget_dark">@color/grey_700</color>
+    <color name="widget">@color/grey_200</color>
     <color name="widget_black">@color/grey_850</color>
 
-    <color name="progress_light">@color/colorAccent</color>
-    <color name="progress_dark">@color/grey_600</color>
+    <color name="progress">@color/colorAccent</color>
     <color name="progress_black">@color/grey_700</color>
 
-    <color name="tag_group_background_light">@color/colorAccent</color>
-    <color name="tag_group_background_dark">@color/grey_775</color>
+    <color name="tag_group_background">@color/colorAccent</color>
     <color name="tag_group_background_black">@color/grey_875</color>
 
-    <color name="tag_background_light">@color/colorPrimary</color>
-    <color name="tag_background_dark">@color/grey_775</color>
+    <color name="tag_background">@color/colorPrimary</color>
     <color name="tag_background_black">@color/grey_875</color>
 
-    <color name="gallery_detail_button_background_light">@color/grey_100</color>
-    <color name="gallery_detail_button_background_dark">@color/grey_800</color>
+    <color name="gallery_detail_button_background">@color/grey_100</color>
     <color name="gallery_detail_button_background_black">@color/grey_900</color>
 
     <color name="red_500">#fff44336</color>
@@ -152,11 +145,11 @@
     <color name="unknown_bg">@android:color/black</color>
 
     <!-- divider -->
-    <color name="divider_light">#20000000</color>
-    <color name="divider_dark">#20ffffff</color>
+    <color name="divider">#20000000</color>
 
+    <color name="divider_black">#20ffffff</color>
     <!-- shadow -->
-    <color name="shadow_light">#38000000</color>
+    <color name="shadow">#38000000</color>
 
     <!-- Gallery Activity -->
     <color name="gallery_slider_background_dark">@color/grey_800</color>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 523069aa8..e2034a077 100755
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2016 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -202,7 +201,7 @@
     <string name="search_sp">Pages:</string>
     <string name="search_sp_to">to</string>
     <!-- A placeholder for other languages -->
-    <string name="search_sp_suffix"/>
+    <string name="search_sp_suffix" />
     <string name="search_sf">Disable default filters for:</string>
     <string name="search_sfl">Language</string>
     <string name="search_sfu">Uploader</string>
@@ -780,4 +779,7 @@
 
     <string name="download_service">Download Service</string>
     <string name="favorite_name">Favorite</string>
+
+    <string name="follow_system">Follow system</string>
+    <string name="black_dark_theme">Black dark theme</string>
 </resources>
diff --git a/app/src/main/res/values/themes.xml b/app/src/main/res/values/themes.xml
index 17c504b14..024cba553 100644
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright 2016 Hippo Seven
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
@@ -20,42 +19,46 @@
     <!-- ========== -->
     <!-- Base Theme -->
     <!-- ========== -->
-    <style name="BaseTheme" parent="Theme.MaterialComponents.Light.DarkActionBar">
+    <style name="BaseTheme" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
         <item name="colorPrimary">@color/colorPrimary</item>
         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
         <item name="colorAccent">@color/colorAccent</item>
         <item name="actionBarStyle">@style/ActionBarStyle</item>
 
         <item name="colorEdgeEffect">@color/colorPrimary</item>
-        <item name="dividerColor">@color/divider_light</item>
+        <item name="dividerColor">@color/divider</item>
         <item name="toolbarColor">@color/colorPrimary</item>
         <item name="textColorThemePrimary">@color/colorPrimary</item>
         <item name="textColorThemeAccent">@color/colorAccent</item>
-        <item name="drawableColorPrimary">@color/primary_drawable_light</item>
-        <item name="drawableColorSecondary">@color/secondary_drawable_light</item>
+        <item name="drawableColorPrimary">@color/primary_drawable</item>
+        <item name="drawableColorSecondary">@color/secondary_drawable</item>
         <item name="drawableColorThemePrimary">@color/colorPrimary</item>
-        <item name="contentColorPrimary">@color/content_light</item>
+        <item name="contentColorPrimary">@color/content</item>
         <item name="contentColorThemePrimary">@color/colorPrimary</item>
         <item name="contentColorThemeAccent">@color/colorAccent</item>
-        <item name="contentColorReactive">@color/content_reactive_light</item>
+        <item name="contentColorReactive">@color/content_reactive</item>
         <item name="widgetColorThemePrimary">@color/colorPrimary</item>
         <item name="widgetColorThemeAccent">@color/colorAccent</item>
-        <item name="progressColor">@color/progress_light</item>
+        <item name="progressColor">@color/progress</item>
         <item name="guideBackgroundColor">@color/guide_bg</item>
         <item name="guideTitleColor">?android:attr/textColorPrimaryInverse</item>
         <item name="guideTextColor">?android:attr/textColorSecondaryInverse</item>
-        <item name="tagGroupBackgroundColor">@color/tag_group_background_light</item>
-        <item name="tagBackgroundColor">@color/tag_background_light</item>
+        <item name="tagGroupBackgroundColor">@color/tag_group_background</item>
+        <item name="tagBackgroundColor">@color/tag_background</item>
         <item name="galleryDetailHeaderTitleColor">?android:attr/textColorPrimaryInverse</item>
         <item name="galleryDetailHeaderBackgroundColor">?attr/contentColorThemePrimary</item>
-        <item name="galleryDetailButtonBackgroundColor">@color/gallery_detail_button_background_light</item>
+        <item name="galleryDetailButtonBackgroundColor">@color/gallery_detail_button_background
+        </item>
 
-        <item name="preferenceHeaderBackground">@drawable/preference_header_background_light</item>
-        <item name="toolbarPopupTheme">@style/ThemeOverlay.AppCompat.Light</item>
-        <item name="galleryDetailDivider">@drawable/divider_gallery_detail_light</item>
+        <!--<item name="preferenceHeaderBackground">@drawable/preference_header_background</item>-->
+        <item name="toolbarPopupTheme">@style/ToolbarPopupTheme</item>
+        <item name="galleryDetailDivider">@drawable/divider_gallery_detail</item>
     </style>
 
+    <style name="ToolbarPopupTheme" parent="ThemeOverlay.MaterialComponents.Light"/>
+
     <style name="AppTheme" parent="BaseTheme">
+        <item name="android:colorEdgeEffect">?attr/colorEdgeEffect</item>
     </style>
 
     <style name="AppTheme.NoActionBar">
@@ -63,65 +66,18 @@
         <item name="windowNoTitle">true</item>
     </style>
 
-    <style name="AppTheme.NoActionBar.Translucent"/>
-
-    <!-- =============== -->
-    <!-- Base Dark Theme -->
-    <!-- =============== -->
-    <style name="BaseTheme.Dark" parent="Theme.MaterialComponents">
-        <item name="colorPrimary">@color/colorPrimary</item>
-        <item name="colorPrimaryDark">@color/grey_900</item>
-        <item name="colorAccent">@color/colorPrimary</item>
-        <item name="colorControlActivated">@color/colorPrimary</item>
-        <item name="actionBarStyle">@style/ActionBarStyle</item>
-
-        <item name="android:windowBackground">@color/grey_850</item>
-        <item name="android:colorBackground">@color/grey_850</item>
-        <item name="colorBackgroundFloating">@color/grey_850</item>
-
-        <item name="colorEdgeEffect">@color/grey_500</item>
-        <item name="dividerColor">@color/divider_dark</item>
-        <item name="toolbarColor">?android:attr/colorBackground</item>
-        <item name="textColorThemePrimary">?android:attr/textColorSecondary</item>
-        <item name="textColorThemeAccent">?android:attr/textColorSecondary</item>
-        <item name="drawableColorPrimary">@color/primary_drawable_dark</item>
-        <item name="drawableColorSecondary">@color/secondary_drawable_dark</item>
-        <item name="drawableColorThemePrimary">@color/primary_drawable_dark</item>
-        <item name="contentColorPrimary">@color/content_dark</item>
-        <item name="contentColorThemePrimary">?attr/contentColorPrimary</item>
-        <item name="contentColorThemeAccent">?attr/contentColorPrimary</item>
-        <item name="contentColorReactive">@color/content_reactive_dark</item>
-        <item name="widgetColorThemePrimary">@color/widget_dark</item>
-        <item name="widgetColorThemeAccent">@color/widget_dark</item>
-        <item name="progressColor">@color/progress_dark</item>
-        <item name="guideBackgroundColor">#e5303030</item>
-        <item name="guideTitleColor">?android:attr/textColorPrimary</item>
-        <item name="guideTextColor">?android:attr/textColorSecondary</item>
-        <item name="tagGroupBackgroundColor">@color/tag_group_background_dark</item>
-        <item name="tagBackgroundColor">@color/tag_background_dark</item>
-        <item name="galleryDetailHeaderTitleColor">?android:attr/textColorPrimary</item>
-        <item name="galleryDetailHeaderBackgroundColor">?attr/contentColorThemePrimary</item>
-        <item name="galleryDetailButtonBackgroundColor">@color/gallery_detail_button_background_dark</item>
-
-        <item name="preferenceHeaderBackground">@drawable/preference_header_background_dark</item>
-        <item name="toolbarPopupTheme">@style/ThemeOverlay.AppCompat.Dark</item>
-        <item name="galleryDetailDivider">@drawable/divider_gallery_detail_dark</item>
+    <style name="AppTheme.NoActionBar.Translucent">
+        <item name="android:windowDrawsSystemBarBackgrounds">true</item>
+        <item name="android:statusBarColor">@android:color/transparent</item>
     </style>
 
-    <style name="AppTheme.Dark" parent="BaseTheme.Dark">
-    </style>
-
-    <style name="AppTheme.Dark.NoActionBar">
-        <item name="windowActionBar">false</item>
-        <item name="windowNoTitle">true</item>
-    </style>
-
-    <style name="AppTheme.Dark.NoActionBar.Translucent"/>
-
     <!-- =============== -->
     <!-- Base Black Theme -->
     <!-- =============== -->
-    <style name="BaseTheme.Black" parent="Theme.MaterialComponents">
+
+    <style name="ThemeOverlay"/>
+    <style name="ThemeOverlay.Black">
+        <item name="android:colorEdgeEffect">?attr/colorEdgeEffect</item>
         <item name="colorPrimary">@color/colorPrimary</item>
         <item name="colorPrimaryDark">@android:color/black</item>
         <item name="colorAccent">@color/colorPrimary</item>
@@ -135,7 +91,7 @@
         <item name="android:textColorPrimary">@color/primary_text_material_black</item>
 
         <item name="colorEdgeEffect">@color/grey_500</item>
-        <item name="dividerColor">@color/divider_dark</item>
+        <item name="dividerColor">@color/divider_black</item>
         <item name="toolbarColor">@android:color/black</item>
         <item name="textColorThemePrimary">?android:attr/textColorSecondary</item>
         <item name="textColorThemeAccent">?android:attr/textColorSecondary</item>
@@ -156,53 +112,27 @@
         <item name="tagBackgroundColor">@color/tag_background_black</item>
         <item name="galleryDetailHeaderTitleColor">?android:attr/textColorPrimary</item>
         <item name="galleryDetailHeaderBackgroundColor">@android:color/black</item>
-        <item name="galleryDetailButtonBackgroundColor">@color/gallery_detail_button_background_black</item>
+        <item name="galleryDetailButtonBackgroundColor">
+            @color/gallery_detail_button_background_black
+        </item>
 
         <item name="preferenceHeaderBackground">@drawable/preference_header_background_black</item>
         <item name="toolbarPopupTheme">@style/ThemeOverlay.AppCompat.Dark</item>
         <item name="galleryDetailDivider">@drawable/divider_gallery_detail_dark</item>
     </style>
 
-    <style name="AppTheme.Black" parent="BaseTheme.Black">
-    </style>
-
-    <style name="AppTheme.Black.NoActionBar">
-        <item name="windowActionBar">false</item>
-        <item name="windowNoTitle">true</item>
-    </style>
-
-    <style name="AppTheme.Black.NoActionBar.Translucent"/>
-
     <!-- ========= -->
     <!-- App Theme -->
     <!-- ========= -->
-    <style name="AppTheme.Main" parent="AppTheme.NoActionBar.Translucent"/>
+    <style name="AppTheme.Main" parent="AppTheme.NoActionBar.Translucent" />
 
-    <style name="AppTheme.Main.Dark" parent="AppTheme.Dark.NoActionBar.Translucent"/>
+    <style name="AppTheme.Toolbar" parent="AppTheme.NoActionBar" />
 
-    <style name="AppTheme.Main.Black" parent="AppTheme.Black.NoActionBar.Translucent"/>
-
-    <style name="AppTheme.Toolbar" parent="AppTheme.NoActionBar"/>
-
-    <style name="AppTheme.Toolbar.Dark" parent="AppTheme.Dark.NoActionBar"/>
-
-    <style name="AppTheme.Toolbar.Black" parent="AppTheme.Black.NoActionBar"/>
-
-    <style name="AppTheme.Gallery" parent="AppTheme.Dark.NoActionBar">
+    <style name="AppTheme.Gallery" parent="AppTheme.NoActionBar">
         <item name="gallerySliderBackgroundColor">@color/gallery_slider_background_dark</item>
     </style>
 
-    <style name="AppTheme.Gallery.Dark"/>
-
-    <style name="AppTheme.Gallery.Black" parent="AppTheme.Black.NoActionBar">
-        <item name="gallerySliderBackgroundColor">@color/gallery_slider_background_black</item>
-    </style>
-
-    <style name="AppTheme.Settings" parent="AppTheme"/>
-
-    <style name="AppTheme.Settings.Dark" parent="AppTheme.Dark"/>
-
-    <style name="AppTheme.Settings.Black" parent="AppTheme.Black"/>
+    <style name="AppTheme.Settings" parent="AppTheme" />
 
     <!-- ============ -->
     <!-- Widget Theme -->
diff --git a/app/src/main/res/xml/eh_settings.xml b/app/src/main/res/xml/eh_settings.xml
index d1d1178fd..14f7bec99 100644
--- a/app/src/main/res/xml/eh_settings.xml
+++ b/app/src/main/res/xml/eh_settings.xml
@@ -55,13 +55,18 @@
         app:iconSpaceReserved="false"/>
 
     <SimpleMenuPreference
+        android:defaultValue="-1"
+        android:entries="@array/night_mode_entries"
+        android:entryValues="@array/night_mode_values"
         android:key="theme"
-        android:title="@string/settings_eh_theme"
         android:summary="%s"
-        app:entries="@array/theme_entries"
-        app:entryValues="@array/theme_entry_values"
-        android:defaultValue="0"
-        app:iconSpaceReserved="false"/>
+        android:title="@string/settings_eh_theme"
+        app:iconSpaceReserved="false" />
+
+    <SwitchPreferenceCompat
+        android:key="black_dark_theme"
+        android:title="@string/black_dark_theme"
+        app:iconSpaceReserved="false" />
 
     <SwitchPreferenceCompat
         android:key="apply_nav_bar_theme_color"