diff --git a/app/src/main/java/xdsopl/robot36/MainActivity.java b/app/src/main/java/xdsopl/robot36/MainActivity.java
index 19ec2ce..3b567a8 100644
--- a/app/src/main/java/xdsopl/robot36/MainActivity.java
+++ b/app/src/main/java/xdsopl/robot36/MainActivity.java
@@ -21,6 +21,7 @@ import android.widget.ImageView;
 
 import androidx.activity.EdgeToEdge;
 import androidx.annotation.NonNull;
+import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.appcompat.app.AppCompatDelegate;
 import androidx.core.app.ActivityCompat;
@@ -367,9 +368,21 @@ public class MainActivity extends AppCompatActivity {
 			AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO);
 			return true;
 		}
+		if (id == R.id.action_privacy_policy) {
+			showTextPage(getString(R.string.privacy_policy), getString(R.string.privacy_policy_text));
+			return true;
+		}
 		return super.onOptionsItemSelected(item);
 	}
 
+	private void showTextPage(String title, String message) {
+		AlertDialog.Builder builder = new AlertDialog.Builder(this, R.style.Theme_AlertDialog);
+		builder.setNeutralButton(R.string.close, null);
+		builder.setTitle(title);
+		builder.setMessage(message);
+		builder.show();
+	}
+
 	@Override
 	protected void onResume() {
 		startListening();
diff --git a/app/src/main/res/menu/menu_main.xml b/app/src/main/res/menu/menu_main.xml
index fd5b4ad..263fc09 100644
--- a/app/src/main/res/menu/menu_main.xml
+++ b/app/src/main/res/menu/menu_main.xml
@@ -79,4 +79,7 @@
 				android:title="@string/disable" />
 		</menu>
 	</item>
+	<item
+		android:id="@+id/action_privacy_policy"
+		android:title="@string/privacy_policy" />
 </menu>
\ No newline at end of file
diff --git a/app/src/main/res/values-night/colors.xml b/app/src/main/res/values-night/colors.xml
index 9e8f90f..5396b94 100644
--- a/app/src/main/res/values-night/colors.xml
+++ b/app/src/main/res/values-night/colors.xml
@@ -1,6 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
 	<color name="black">#FF000000</color>
+	<color name="dark">#FF010101</color>
+	<color name="gray">#FFB4B4B4</color>
+	<color name="thin">#FF2F2F2F</color>
 	<color name="white">#FFFFFFFF</color>
 	<color name="tint">#FFFFFFFF</color>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-night/themes.xml b/app/src/main/res/values-night/themes.xml
index 473cbd1..dedc5cd 100644
--- a/app/src/main/res/values-night/themes.xml
+++ b/app/src/main/res/values-night/themes.xml
@@ -1,7 +1,28 @@
-<resources xmlns:tools="http://schemas.android.com/tools">
+<resources>
 	<!-- Base application theme. -->
 	<style name="Base.Theme.Robot36" parent="Theme.Material3.DayNight">
-		<!-- Customize your dark theme here. -->
-		<!-- <item name="colorPrimary">@color/my_dark_primary</item> -->
+		<!-- Primary brand color. -->
+		<item name="colorPrimary">@color/black</item>
+		<item name="colorPrimaryVariant">@color/gray</item>
+		<item name="colorOnPrimary">@color/white</item>
+		<!-- Secondary brand color. -->
+		<item name="colorSecondary">@color/gray</item>
+		<item name="colorSecondaryVariant">@color/black</item>
+		<item name="colorOnSecondary">@color/white</item>
+		<!-- Status bar color. -->
+		<item name="android:statusBarColor">@color/black</item>
+		<!-- Customize your theme here. -->
+		<item name="android:navigationBarColor">@color/dark</item>
+	</style>
+
+	<style name="Theme.AlertDialog" parent="Theme.Material3.DayNight.Dialog.Alert">
+		<!-- Primary brand color. -->
+		<item name="colorPrimary">@color/white</item>
+		<item name="colorPrimaryVariant">@color/gray</item>
+		<item name="colorOnPrimary">@color/white</item>
+		<!-- Secondary brand color. -->
+		<item name="colorSecondary">@color/gray</item>
+		<item name="colorSecondaryVariant">@color/black</item>
+		<item name="colorOnSecondary">@color/white</item>
 	</style>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index 94a849e..e9d42dc 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -1,6 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
 	<color name="black">#FF000000</color>
+	<color name="dark">#FF010101</color>
+	<color name="gray">#FF696969</color>
+	<color name="thin">#FFE0E0E0</color>
 	<color name="white">#FFFFFFFF</color>
 	<color name="tint">#FF000000</color>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 634d803..be8ac37 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -28,4 +28,11 @@
 	<string name="night_mode">Night Mode</string>
 	<string name="enable">Enable</string>
 	<string name="disable">Disable</string>
+	<string name="close">Close</string>
+	<string name="privacy_policy">Privacy Policy</string>
+	<string name="privacy_policy_text">To be able to decode SSTV encoded images the app needs access to the microphone.
+Having access to the microphone is considered to be a sensitive permission and you have the right to know what the app does with that access:
+The data recorded from the microphone is only used to fed the SSTV decoder, VU meter and the spectrum analyzer for visualization of its frequency content.
+The app uses a very small temporary buffer in volatile memory and constantly overwrites this buffer with new data from the microphone.
+The resulting images from the SSTV decoder is the only data that gets stored in persistent storage on your Android device.</string>
 </resources>
diff --git a/app/src/main/res/values/themes.xml b/app/src/main/res/values/themes.xml
index fc76dac..6315a79 100644
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@@ -1,8 +1,29 @@
-<resources xmlns:tools="http://schemas.android.com/tools">
+<resources>
 	<!-- Base application theme. -->
 	<style name="Base.Theme.Robot36" parent="Theme.Material3.DayNight">
-		<!-- Customize your light theme here. -->
-		<!-- <item name="colorPrimary">@color/my_light_primary</item> -->
+		<!-- Primary brand color. -->
+		<item name="colorPrimary">@color/white</item>
+		<item name="colorPrimaryVariant">@color/gray</item>
+		<item name="colorOnPrimary">@color/black</item>
+		<!-- Secondary brand color. -->
+		<item name="colorSecondary">@color/gray</item>
+		<item name="colorSecondaryVariant">@color/white</item>
+		<item name="colorOnSecondary">@color/black</item>
+		<!-- Status bar color. -->
+		<item name="android:statusBarColor">@color/black</item>
+		<!-- Customize your theme here. -->
+		<item name="android:navigationBarColor">@color/dark</item>
+	</style>
+
+	<style name="Theme.AlertDialog" parent="Theme.Material3.DayNight.Dialog.Alert">
+		<!-- Primary brand color. -->
+		<item name="colorPrimary">@color/black</item>
+		<item name="colorPrimaryVariant">@color/gray</item>
+		<item name="colorOnPrimary">@color/black</item>
+		<!-- Secondary brand color. -->
+		<item name="colorSecondary">@color/gray</item>
+		<item name="colorSecondaryVariant">@color/white</item>
+		<item name="colorOnSecondary">@color/black</item>
 	</style>
 
 	<style name="Theme.Robot36" parent="Base.Theme.Robot36" />