tachiyomi/app/src/main/res/values-v21/styles.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    
    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
        <item name="alertDialogTheme">@style/AlertDialogStyle</item>
        <item name="android:textColor">@color/primary_text</item>
        <item name="windowActionModeOverlay">true</item>
        <item name="android:navigationBarColor">@color/colorPrimaryDark</item>
    </style>

</resources>