With 7.0.247 and metal active, on iPhone 15 pro max with iOS 26.5, the FloatingActionButton is sometimes shown with violet background as shown in the screenshot below. It seems this only happens when the app is brought back to foreground after a long pause (so app was probably killed - at least moving it to background and quickly to foreground shows the FAB correctly. It only happens in the first Form (when showing another Form with the FAB, it is shown correctly). But I haven't been able to reproduce it consistently (it looks OK if manually killing the app and quickly starting it again).
With 7.0.247 and metal active, on iPhone 15 pro max with iOS 26.5, the
FloatingActionButtonis sometimes shown with violet background as shown in the screenshot below. It seems this only happens when the app is brought back to foreground after a long pause (so app was probably killed - at least moving it to background and quickly to foreground shows the FAB correctly. It only happens in the first Form (when showing another Form with the FAB, it is shown correctly). But I haven't been able to reproduce it consistently (it looks OK if manually killing the app and quickly starting it again).