Twidere-App-Android-Twitter-Mastodon/twidere.donate.nyanwp/src/main/res/xml/nyan_wallpaper.xml

<?xml version="1.0" encoding="utf-8"?>
<wallpaper xmlns:android="http://schemas.android.com/apk/res/android"
	android:thumbnail="@drawable/nyan_sakamoto_thumbnail"/>