diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 2291bfd..bc1304b 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -57,6 +57,8 @@
     <string name="pref_timer_reset_summary">Also reset the timer, when resetting the game board.</string>
     <string name="pref_dark_mode">Dark Theme</string>
     <string name="pref_group_dark_theme">Dark Theme settings</string>
+    <string name="pref_dark_mode_automatically_by_system">Automatically by system </string>
+    <string name="pref_dark_mode_automatically_by_battery">Automatically by battery </string>
 
     <string name="pref_dark_mode_setting">Dark Theme</string>
     <string name="pref_dark_mode_summary">switch between light and dark theme</string>
diff --git a/app/src/main/res/xml/pref_settings_general.xml b/app/src/main/res/xml/pref_settings_general.xml
index b014bbe..f53c0cc 100644
--- a/app/src/main/res/xml/pref_settings_general.xml
+++ b/app/src/main/res/xml/pref_settings_general.xml
@@ -35,6 +35,19 @@
         android:title="@string/pref_dark_mode"
         android:summary="@string/pref_dark_mode_summary"
         android:defaultValue="true"/>
+
+        <SwitchPreference android:id="@+id/pref_dark_theme_automatically_by_system"
+            android:key="pref_dark_mode_automatically_by_system"
+            android:title="@string/pref_dark_mode_automatically_by_system"
+            android:summary="Dark theme is adapted to settings of the OS"
+            android:defaultValue="true"/>
+
+        <SwitchPreference android:id="@+id/pref_dark_theme_automatically_by_battery"
+            android:key="pref_dark_mode_automatically_by_battery"
+            android:title="@string/pref_dark_mode_automatically_by_battery"
+            android:summary="adjusts Dark theme automatically according to battery status "
+            android:defaultValue="true"/>
+
     </PreferenceCategory>
 
     <PreferenceCategory android:title="@string/pref_group_highlight_selection">