static OkSticker() { // Enable Themes for this Control DefaultStyleKeyProperty.OverrideMetadata(typeof(OkSticker), new FrameworkPropertyMetadata(typeof(OkSticker))); DescriptionProperty.OverrideMetadata(typeof(OkSticker), new FrameworkPropertyMetadata("Ok")); ImageProperty.OverrideMetadata(typeof(OkSticker), new FrameworkPropertyMetadata(new BitmapImage(new Uri("pack://application:,,,/WPF-Kanban;component/Res/ok.png")))); }