The launcher has to support the underlying API. On Samsung devices running One UI 4.x you still have to install an additional app for that: https://galaxystore

The launcher has to support the underlying API. On Samsung devices running One UI 4.x you still have to install an additional app for that: https://galaxystore.samsung.com/detail/com.samsung.android.themedesigner?langCd=en https://galaxystore.samsung.com/detail/com.samsung.android.t... I'm not sure what's available in GrapheneOS (quick search tells me it's not supported).