public ChangeToBlackCommand(ColorChangerDemoWindow window) : base(window) { }
public ChangeToGreenCommand(ColorChangerDemoWindow window) : base(window) { }
public ChangeToYellowCommand(ColorChangerDemoWindow window) : base(window) { }
public ChangeToGenericColorCommand(ColorChangerDemoWindow window, Brush brush) : base(window) { _currentBrush = brush; }
protected ColorCommand(ColorChangerDemoWindow window) { Window = window; }