private void CreateTitlebarView()
        {
            var container    = new TitleBarContainer(CGRect.Empty);
            var firstSubView = ThemeFrameView.Subviews[0];

            ThemeFrameView.AddSubview(container, NSWindowOrderingMode.Below, firstSubView);
            _titleBarContainer = container;
            TitleBarView       = new TitleBarView(CGRect.Empty);
        }
 private void SetupTrafficLightsTrackingArea()
 {
     ThemeFrameView.ViewWillStartLiveResize();
     ThemeFrameView.ViewDidEndLiveResize();
 }