preferences.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.preference.PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <ListPreference
        android:defaultValue="@string/pf_dark_auto"
        android:dialogTitle="@string/pf_dark_dialog"
        android:entries="@array/light_theme"
        android:entryValues="@array/light_theme_value"
        app:key="@string/pf_key_light"
        app:summary="@string/pf_content_message"
        app:title="@string/pf_light_title" />

</androidx.preference.PreferenceScreen>