diff --git a/res/values/cm_strings.xml b/res/values/cm_strings.xml
index 1a1fcf6e9e2..f6e4e274926 100644
--- a/res/values/cm_strings.xml
+++ b/res/values/cm_strings.xml
@@ -32,6 +32,10 @@
     <string name="backup_transport_setting_label">Change backup provider</string>
     <string name="backup_transport_title">Select backup provider</string>
 
+    <!-- Black theme for dark mode -->
+    <string name="berry_black_theme_title">Pure black</string>
+    <string name="berry_black_theme_summary">Pure black background for dark theme</string>
+
     <!-- Device Info screen. LineageOS legal. -->
     <string name="lineagelicense_title">LineageOS legal</string>
 
diff --git a/res/xml/dark_mode_settings.xml b/res/xml/dark_mode_settings.xml
index 7f136594807..c21af34cfc3 100644
--- a/res/xml/dark_mode_settings.xml
+++ b/res/xml/dark_mode_settings.xml
@@ -62,4 +62,11 @@
         settings:searchable="false"
         settings:controller="com.android.settings.display.darkmode.DarkModeCustomBedtimePreferenceController" />
 
+    <lineageos.preference.LineageSecureSettingSwitchPreference
+        android:key="berry_black_theme"
+        android:dependency="dark_ui_activated"
+        android:title="@string/berry_black_theme_title"
+        android:summary="@string/berry_black_theme_summary"
+        android:defaultValue="false"
+        settings:requiresPackage="org.lineageos.overlay.customization.blacktheme" />
 </PreferenceScreen>