diff --git a/app/build.gradle b/app/build.gradle
index 80fae7a4..fd963943 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -41,6 +41,7 @@ dependencies {
     implementation 'androidx.constraintlayout:constraintlayout:2.0.0-beta5'
     implementation 'androidx.legacy:legacy-support-v4:1.0.0'
     implementation 'androidx.vectordrawable:vectordrawable:1.1.0'
+    implementation 'androidx.preference:preference:1.1.0-rc01'
     testImplementation 'junit:junit:4.13'
     androidTestImplementation 'androidx.test:runner:1.2.0'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index eefcbdad..314b2b1e 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -41,6 +41,10 @@
             android:name=".log.LogsActivity"
             android:label="@string/title_activity_logs"
             android:theme="@style/AppTheme.NoActionBar" />
+        <activity
+            android:name=".settings.SettingsActivity"
+            android:theme="@style/AppTheme.NoActionBar"
+            android:label="@string/title_activity_settings" />
 
         <service android:name=".service.WebSocketService" />
 
diff --git a/app/src/main/java/com/github/gotify/init/InitializationActivity.java b/app/src/main/java/com/github/gotify/init/InitializationActivity.java
index 2e8df5c6..b43b067b 100644
--- a/app/src/main/java/com/github/gotify/init/InitializationActivity.java
+++ b/app/src/main/java/com/github/gotify/init/InitializationActivity.java
@@ -8,6 +8,7 @@
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.app.AppCompatActivity;
+import androidx.preference.PreferenceManager;
 import com.github.gotify.NotificationSupport;
 import com.github.gotify.R;
 import com.github.gotify.Settings;
@@ -21,6 +22,7 @@
 import com.github.gotify.login.LoginActivity;
 import com.github.gotify.messages.MessagesActivity;
 import com.github.gotify.service.WebSocketService;
+import com.github.gotify.settings.ThemeHelper;
 
 import static com.github.gotify.api.Callback.callInUI;
 
@@ -31,6 +33,13 @@ public class InitializationActivity extends AppCompatActivity {
     protected void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         Log.init(this);
+        String theme =
+                PreferenceManager.getDefaultSharedPreferences(this)
+                        .getString(
+                                getString(R.string.setting_key_theme),
+                                getString(R.string.theme_default));
+        ThemeHelper.setTheme(this, theme);
+
         setContentView(R.layout.splash);
 
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
diff --git a/app/src/main/java/com/github/gotify/login/LoginActivity.java b/app/src/main/java/com/github/gotify/login/LoginActivity.java
index 235d96fd..a57f2737 100644
--- a/app/src/main/java/com/github/gotify/login/LoginActivity.java
+++ b/app/src/main/java/com/github/gotify/login/LoginActivity.java
@@ -14,6 +14,7 @@
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.view.ContextThemeWrapper;
 import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
@@ -135,7 +136,7 @@ public void doCheckUrl() {
     }
 
     public void showHttpWarning() {
-        new AlertDialog.Builder(this)
+        new AlertDialog.Builder(new ContextThemeWrapper(this, R.style.AppTheme_Dialog))
                 .setTitle(R.string.warning)
                 .setCancelable(true)
                 .setMessage(R.string.http_warning)
@@ -273,7 +274,7 @@ private void newClientDialog(ApiClient client) {
         EditText clientName = new EditText(this);
         clientName.setText(Build.MODEL);
 
-        new AlertDialog.Builder(this)
+        new AlertDialog.Builder(new ContextThemeWrapper(this, R.style.AppTheme_Dialog))
                 .setTitle(R.string.create_client_title)
                 .setMessage(R.string.create_client_message)
                 .setView(clientName)
diff --git a/app/src/main/java/com/github/gotify/messages/MessagesActivity.java b/app/src/main/java/com/github/gotify/messages/MessagesActivity.java
index 4ce3bc5c..3522dd54 100644
--- a/app/src/main/java/com/github/gotify/messages/MessagesActivity.java
+++ b/app/src/main/java/com/github/gotify/messages/MessagesActivity.java
@@ -22,6 +22,7 @@
 import androidx.appcompat.app.ActionBarDrawerToggle;
 import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.view.ContextThemeWrapper;
 import androidx.appcompat.widget.Toolbar;
 import androidx.core.content.ContextCompat;
 import androidx.core.graphics.drawable.DrawableCompat;
@@ -61,6 +62,7 @@
 import com.github.gotify.messages.provider.MessageWithImage;
 import com.github.gotify.picasso.PicassoDataRequestHandler;
 import com.github.gotify.service.WebSocketService;
+import com.github.gotify.settings.SettingsActivity;
 import com.google.android.material.navigation.NavigationView;
 import com.google.android.material.snackbar.BaseTransientBottomBar;
 import com.google.android.material.snackbar.Snackbar;
@@ -309,7 +311,7 @@ public boolean onNavigationItemSelected(MenuItem item) {
             startLoading();
             toolbar.setSubtitle("");
         } else if (id == R.id.logout) {
-            new AlertDialog.Builder(this)
+            new AlertDialog.Builder(new ContextThemeWrapper(this, R.style.AppTheme_Dialog))
                     .setTitle(R.string.logout)
                     .setMessage(getString(R.string.logout_confirm))
                     .setPositiveButton(R.string.yes, this::doLogout)
@@ -317,6 +319,8 @@ public boolean onNavigationItemSelected(MenuItem item) {
                     .show();
         } else if (id == R.id.nav_logs) {
             startActivity(new Intent(this, LogsActivity.class));
+        } else if (id == R.id.settings) {
+            startActivity(new Intent(this, SettingsActivity.class));
         }
 
         drawer.closeDrawer(GravityCompat.START);
@@ -326,6 +330,7 @@ public boolean onNavigationItemSelected(MenuItem item) {
     public void doLogout(DialogInterface dialog, int which) {
         setContentView(R.layout.splash);
         new DeleteClientAndNavigateToLogin().execute();
+        finish();
     }
 
     private void startLoading() {
diff --git a/app/src/main/java/com/github/gotify/settings/SettingsActivity.java b/app/src/main/java/com/github/gotify/settings/SettingsActivity.java
new file mode 100644
index 00000000..b7340792
--- /dev/null
+++ b/app/src/main/java/com/github/gotify/settings/SettingsActivity.java
@@ -0,0 +1,56 @@
+package com.github.gotify.settings;
+
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.view.MenuItem;
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.preference.PreferenceFragmentCompat;
+import androidx.preference.PreferenceManager;
+import com.github.gotify.R;
+
+public class SettingsActivity extends AppCompatActivity
+        implements SharedPreferences.OnSharedPreferenceChangeListener {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.settings_activity);
+        getSupportFragmentManager()
+                .beginTransaction()
+                .replace(R.id.settings, new SettingsFragment())
+                .commit();
+        setSupportActionBar(findViewById(R.id.toolbar));
+        ActionBar actionBar = getSupportActionBar();
+        if (actionBar != null) {
+            actionBar.setDisplayHomeAsUpEnabled(true);
+            actionBar.setDisplayShowCustomEnabled(true);
+        }
+        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
+        sharedPreferences.registerOnSharedPreferenceChangeListener(this);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(@NonNull MenuItem item) {
+        if (item.getItemId() == android.R.id.home) {
+            finish();
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    @Override
+    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
+        if (getString(R.string.setting_key_theme).equals(key)) {
+            ThemeHelper.setTheme(
+                    this, sharedPreferences.getString(key, getString(R.string.theme_default)));
+        }
+    }
+
+    public static class SettingsFragment extends PreferenceFragmentCompat {
+        @Override
+        public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+            setPreferencesFromResource(R.xml.root_preferences, rootKey);
+        }
+    }
+}
diff --git a/app/src/main/java/com/github/gotify/settings/ThemeHelper.java b/app/src/main/java/com/github/gotify/settings/ThemeHelper.java
new file mode 100644
index 00000000..58af750c
--- /dev/null
+++ b/app/src/main/java/com/github/gotify/settings/ThemeHelper.java
@@ -0,0 +1,27 @@
+package com.github.gotify.settings;
+
+import android.content.Context;
+import android.os.Build;
+import androidx.appcompat.app.AppCompatDelegate;
+import com.github.gotify.R;
+
+public final class ThemeHelper {
+    private ThemeHelper() {}
+
+    public static void setTheme(Context context, String newTheme) {
+        AppCompatDelegate.setDefaultNightMode(ofKey(context, newTheme));
+    }
+
+    private static int ofKey(Context context, String newTheme) {
+        if (context.getString(R.string.theme_dark).equals(newTheme)) {
+            return AppCompatDelegate.MODE_NIGHT_YES;
+        }
+        if (context.getString(R.string.theme_light).equals(newTheme)) {
+            return AppCompatDelegate.MODE_NIGHT_NO;
+        }
+        if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.P) {
+            return AppCompatDelegate.MODE_NIGHT_AUTO_BATTERY;
+        }
+        return AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM;
+    }
+}
diff --git a/app/src/main/res/drawable/gradient.xml b/app/src/main/res/drawable/gradient.xml
deleted file mode 100644
index 5f41b34e..00000000
--- a/app/src/main/res/drawable/gradient.xml
+++ /dev/null
@@ -1,10 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<shape xmlns:android="http://schemas.android.com/apk/res/android"
-    android:shape="rectangle">
-    <gradient
-        android:startColor="#dfe3e4"
-        android:endColor="#ecf0f1"
-        android:angle="0"/>
-    <corners
-        android:radius="0dp"/>
-</shape>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/ic_settings.xml b/app/src/main/res/drawable/ic_settings.xml
index 4522aca8..a087c86c 100644
--- a/app/src/main/res/drawable/ic_settings.xml
+++ b/app/src/main/res/drawable/ic_settings.xml
@@ -1,4 +1,6 @@
 <vector android:height="24dp" android:viewportHeight="20"
     android:viewportWidth="20" android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
-    <path android:fillColor="#FF000000" android:pathData="M15.95,10.78c0.03,-0.25 0.05,-0.51 0.05,-0.78s-0.02,-0.53 -0.06,-0.78l1.69,-1.32c0.15,-0.12 0.19,-0.34 0.1,-0.51l-1.6,-2.77c-0.1,-0.18 -0.31,-0.24 -0.49,-0.18l-1.99,0.8c-0.42,-0.32 -0.86,-0.58 -1.35,-0.78L12,2.34c-0.03,-0.2 -0.2,-0.34 -0.4,-0.34H8.4c-0.2,0 -0.36,0.14 -0.39,0.34l-0.3,2.12c-0.49,0.2 -0.94,0.47 -1.35,0.78l-1.99,-0.8c-0.18,-0.07 -0.39,0 -0.49,0.18l-1.6,2.77c-0.1,0.18 -0.06,0.39 0.1,0.51l1.69,1.32c-0.04,0.25 -0.07,0.52 -0.07,0.78s0.02,0.53 0.06,0.78L2.37,12.1c-0.15,0.12 -0.19,0.34 -0.1,0.51l1.6,2.77c0.1,0.18 0.31,0.24 0.49,0.18l1.99,-0.8c0.42,0.32 0.86,0.58 1.35,0.78l0.3,2.12c0.04,0.2 0.2,0.34 0.4,0.34h3.2c0.2,0 0.37,-0.14 0.39,-0.34l0.3,-2.12c0.49,-0.2 0.94,-0.47 1.35,-0.78l1.99,0.8c0.18,0.07 0.39,0 0.49,-0.18l1.6,-2.77c0.1,-0.18 0.06,-0.39 -0.1,-0.51l-1.67,-1.32zM10,13c-1.65,0 -3,-1.35 -3,-3s1.35,-3 3,-3 3,1.35 3,3 -1.35,3 -3,3z"/>
+    <path
+        android:fillColor="@color/icons"
+        android:pathData="M15.95,10.78c0.03,-0.25 0.05,-0.51 0.05,-0.78s-0.02,-0.53 -0.06,-0.78l1.69,-1.32c0.15,-0.12 0.19,-0.34 0.1,-0.51l-1.6,-2.77c-0.1,-0.18 -0.31,-0.24 -0.49,-0.18l-1.99,0.8c-0.42,-0.32 -0.86,-0.58 -1.35,-0.78L12,2.34c-0.03,-0.2 -0.2,-0.34 -0.4,-0.34H8.4c-0.2,0 -0.36,0.14 -0.39,0.34l-0.3,2.12c-0.49,0.2 -0.94,0.47 -1.35,0.78l-1.99,-0.8c-0.18,-0.07 -0.39,0 -0.49,0.18l-1.6,2.77c-0.1,0.18 -0.06,0.39 0.1,0.51l1.69,1.32c-0.04,0.25 -0.07,0.52 -0.07,0.78s0.02,0.53 0.06,0.78L2.37,12.1c-0.15,0.12 -0.19,0.34 -0.1,0.51l1.6,2.77c0.1,0.18 0.31,0.24 0.49,0.18l1.99,-0.8c0.42,0.32 0.86,0.58 1.35,0.78l0.3,2.12c0.04,0.2 0.2,0.34 0.4,0.34h3.2c0.2,0 0.37,-0.14 0.39,-0.34l0.3,-2.12c0.49,-0.2 0.94,-0.47 1.35,-0.78l1.99,0.8c0.18,0.07 0.39,0 0.49,-0.18l1.6,-2.77c0.1,-0.18 0.06,-0.39 -0.1,-0.51l-1.67,-1.32zM10,13c-1.65,0 -3,-1.35 -3,-3s1.35,-3 3,-3 3,1.35 3,3 -1.35,3 -3,3z"/>
 </vector>
diff --git a/app/src/main/res/layout/activity_login.xml b/app/src/main/res/layout/activity_login.xml
index 16565ace..1ce90e87 100644
--- a/app/src/main/res/layout/activity_login.xml
+++ b/app/src/main/res/layout/activity_login.xml
@@ -6,22 +6,22 @@
     android:layout_height="match_parent"
     android:fillViewport="true">
 
-    <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-        xmlns:app="http://schemas.android.com/apk/res-auto"
-        xmlns:tools="http://schemas.android.com/tools"
+    <androidx.constraintlayout.widget.ConstraintLayout
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:background="@drawable/gradient"
         android:orientation="vertical"
         tools:context=".login.LoginActivity"
         tools:layout_editor_absoluteY="25dp">
 
         <Button
             android:id="@+id/open_logs"
-            android:layout_width="50dp"
+            android:layout_width="70dp"
             android:layout_height="40dp"
-            android:background="@null"
+            android:insetTop="0dp"
+            style="@style/Widget.AppCompat.Button.Borderless.Colored"
             android:text="@string/logs"
+            app:backgroundTint="#00FFFFFF"
+            android:textColor="@color/colorNavPrimary"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toTopOf="parent" />
 
diff --git a/app/src/main/res/layout/activity_messages.xml b/app/src/main/res/layout/activity_messages.xml
index 8dfd48ee..fef81662 100644
--- a/app/src/main/res/layout/activity_messages.xml
+++ b/app/src/main/res/layout/activity_messages.xml
@@ -91,6 +91,7 @@
         android:layout_height="match_parent"
         android:layout_gravity="start"
         android:fitsSystemWindows="true"
+        app:theme="@style/AppTheme.Nav"
         app:headerLayout="@layout/nav_header_drawer"
         app:menu="@menu/messages_menu" />
 
diff --git a/app/src/main/res/layout/settings_activity.xml b/app/src/main/res/layout/settings_activity.xml
new file mode 100644
index 00000000..caf07a74
--- /dev/null
+++ b/app/src/main/res/layout/settings_activity.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.drawerlayout.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/drawer_layout"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:fitsSystemWindows="true"
+    tools:openDrawer="start">
+
+    <androidx.coordinatorlayout.widget.CoordinatorLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+            android:layout_width="match_parent"
+            app:layout_behavior="@string/appbar_scrolling_view_behavior"
+            android:layout_height="match_parent">
+
+        <FrameLayout
+            android:id="@+id/settings"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent" />
+        </LinearLayout>
+
+        <include
+            layout="@layout/app_bar_drawer"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content" />
+    </androidx.coordinatorlayout.widget.CoordinatorLayout>
+
+</androidx.drawerlayout.widget.DrawerLayout>
diff --git a/app/src/main/res/menu/messages_menu.xml b/app/src/main/res/menu/messages_menu.xml
index 650b683a..28241bfb 100644
--- a/app/src/main/res/menu/messages_menu.xml
+++ b/app/src/main/res/menu/messages_menu.xml
@@ -16,15 +16,20 @@
     </group>
     <group android:checkableBehavior="single">
         <item
-            android:icon="@drawable/ic_power_setting"
+            android:icon="@drawable/ic_settings"
             android:orderInCategory="2"
-            android:id="@+id/logout"
-            android:title="@string/logout" />
+            android:id="@+id/settings"
+            android:title="@string/title_activity_settings" />
         <item
             android:orderInCategory="2"
             android:icon="@drawable/ic_bug_report"
             android:id="@+id/nav_logs"
             android:title="@string/logs" />
+        <item
+            android:icon="@drawable/ic_power_setting"
+            android:orderInCategory="2"
+            android:id="@+id/logout"
+            android:title="@string/logout" />
     </group>
 
 </menu>
diff --git a/app/src/main/res/values-notnight/colors.xml b/app/src/main/res/values-notnight/colors.xml
new file mode 100644
index 00000000..59e1f26c
--- /dev/null
+++ b/app/src/main/res/values-notnight/colors.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorNavPrimary">#000000</color>
+    <color name="colorPrimaryDark">#3867d6</color>
+    <color name="colorAccent">#1c49b4</color>
+    <color name="icons">#434343</color>
+    <color name="swipeBackground">#E74C3C</color>
+    <color name="swipeIcon">#FFFFFF</color>
+</resources>
diff --git a/app/src/main/res/values/arrays.xml b/app/src/main/res/values/arrays.xml
new file mode 100644
index 00000000..888606ac
--- /dev/null
+++ b/app/src/main/res/values/arrays.xml
@@ -0,0 +1,10 @@
+<resources>
+    <string-array name="mode">
+        <item>@string/theme_light</item>
+        <item>@string/theme_dark</item>
+        <item>@string/theme_default</item>
+    </string-array>
+    <string name="theme_light">Light</string>
+    <string name="theme_dark">Dark</string>
+    <string name="theme_default">System Default</string>
+</resources>
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index 0181dbcf..0d377101 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -1,9 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <color name="colorPrimary">#3F51B5</color>
+    <color name="colorNavPrimary">#FFFFFF</color>
     <color name="colorPrimaryDark">#3867d6</color>
     <color name="colorAccent">#1c49b4</color>
-    <color name="icons">#434343</color>
+    <color name="icons">#797979</color>
     <color name="swipeBackground">#E74C3C</color>
     <color name="swipeIcon">#FFFFFF</color>
 </resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 0d95ce0b..34487045 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -64,4 +64,8 @@
     <string name="websocket_no_network">Waiting for network</string>
     <string name="connection">%s@%s</string>
     <string name="no_messages_yet">There are no messages, yet.\nSend a message to Gotify\nand it will appear here.</string>
+    <string name="title_activity_settings">Settings</string>
+    <string name="settings_appearance">Appearance</string>
+    <string name="setting_theme">Theme</string>
+    <string name="setting_key_theme">theme</string>
 </resources>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index 545b9c6d..775c7066 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -1,20 +1,27 @@
 <resources>
 
     <!-- Base application theme. -->
-    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+    <style name="AppTheme" parent="Theme.MaterialComponents.DayNight">
         <!-- Customize your theme here. -->
         <item name="colorPrimary">@color/colorPrimary</item>
         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
         <item name="colorAccent">@color/colorAccent</item>
     </style>
+    <style name="AppTheme.Nav">
+        <item name="colorPrimary">@color/colorNavPrimary</item>
+    </style>
 
     <style name="AppTheme.NoActionBar">
         <item name="windowActionBar">false</item>
         <item name="windowNoTitle">true</item>
     </style>
 
-    <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
+    <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.MaterialComponents.Dark.ActionBar" />
+
+    <style name="AppTheme.PopupOverlay" parent="AppTheme" />
 
-    <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
+    <style name="AppTheme.Dialog" parent="AppTheme" >
+        <item name="colorPrimary">@color/colorNavPrimary</item>
+    </style>
 
 </resources>
diff --git a/app/src/main/res/xml/root_preferences.xml b/app/src/main/res/xml/root_preferences.xml
new file mode 100644
index 00000000..0ff1dbea
--- /dev/null
+++ b/app/src/main/res/xml/root_preferences.xml
@@ -0,0 +1,13 @@
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <PreferenceCategory app:title="@string/settings_appearance" >
+        <ListPreference
+            android:defaultValue="@string/theme_default"
+            android:entries="@array/mode"
+            android:entryValues="@array/mode"
+            android:key="@string/setting_key_theme"
+            android:title="@string/setting_theme" />
+    </PreferenceCategory>
+
+</PreferenceScreen>