tor-android/res/values/theme.xml

<?xml version="1.0" encoding="utf-8"?>

<resources>
    <style name="DefaultTheme" parent="Theme.AppCompat">
        <item name="android:windowNoTitle">true</item>
    </style>
    
    <!-- the theme applied to the application or activity -->
    <style name="CustomActionBarTheme"
           parent="Theme.AppCompat">
        <item name="android:windowActionBarOverlay">true</item>
    </style>
</resources>