app/src/main/res/values/arrays.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string-array name="dark_mode_selector">
<item>Light [BETA]</item>
<item>Dark</item>
<item>Battery Saver (Default)</item>
</string-array>
<string-array name="dark_mode_selector_option">
<item>light</item>
<item>dark</item>
<item>batterydefault</item>
</string-array>
</resources>