I don't know how exactly the monochrome colorized Android/GrapheneOS icons work but currently two apps I have installed have them borked in different ways. Phandroid by nostr:nprofile1qy2hwumn8ghj7un9...
@nprofile1q... @nprofile1q... @nprofile1q... @nprofile1q... Please have a look at Phandroid 2.0.7 (just released). It should hopefully fix this.