Based on maxtomczyk's fix the following seems to works fine with "new" App (no SceneDelegate.swift) (with universal AccentColor in assets ofc) // root app file @main struct MyApp: App { init(){ // override apple's buggy alerts tintColor UIView.appearance(whenContainedInInstancesOf: [UIAlertController.self]).tintColor = UIColor(named: "AccentColor") } var body: some Scene { WindowGroup { // content view... } } }