public SettingsViewModel(INavigationService navigationService) : base(navigationService) { SwitchToDarkModeCommand = new DelegateCommand <AnimationView>(async Switch => { if (Preferences.Get("IsDarkMode", false)) { Switch.PlayFrameSegment(15, 50); Preferences.Set("IsDarkMode", false); App.ActivateDarkMode(false); } else { Switch.PlayFrameSegment(0, 15); Preferences.Set("IsDarkMode", true); App.ActivateDarkMode(true); } }); }