7 writes to BackgroundColor
PresentationCore (1)
System\Windows\InterOp\HwndSource.cs (1)
273_hwndTarget.BackgroundColor = Colors.Transparent;
PresentationFramework (6)
System\Windows\Appearance\WindowBackdropManager.cs (2)
105windowSource.CompositionTarget.BackgroundColor = Colors.Transparent; 119windowSource.CompositionTarget.BackgroundColor = SystemColors.WindowColor;
System\Windows\Controls\Primitives\Popup.cs (1)
3368hwndTarget.BackgroundColor = transparent ? Colors.Transparent : Colors.Black;
System\Windows\Shell\WindowChromeWorker.cs (3)
952_hwndSource.CompositionTarget.BackgroundColor = SystemColors.WindowColor; 962_hwndSource.CompositionTarget.BackgroundColor = Colors.Transparent; 1148_hwndSource.CompositionTarget.BackgroundColor = SystemColors.WindowColor;