Google's updated design language, dubbed Material You, makes interface design a much more personalized experience on Android phones, with UI elements pulling their colors from your wallpaper. But the theming couldn't only be restricted to the notification shade, accent colors, and app backgrounds. Evidence is mounting that it could extend to app icons, too — if developers add support for it.
As reported by app devs kdrag0n and Kieron Quinn, there's a hidden flag that allows you to theme a few app icons on Android 12 Beta 2, matching the colors extracted from your wallpaper. The list is currently exclusive to most pre-installed Google apps, safe for a few like Messages, Phone, and Photos.
