7 writes to BackgroundColor
PresentationCore (1)
System\Windows\InterOp\HwndSource.cs (1)
268_hwndTarget.BackgroundColor = Colors.Transparent;
PresentationFramework (6)
System\Windows\Appearance\WindowBackdropManager.cs (2)
102windowSource.CompositionTarget.BackgroundColor = Colors.Transparent; 116windowSource.CompositionTarget.BackgroundColor = SystemColors.WindowColor;
System\Windows\Controls\Primitives\Popup.cs (1)
3362hwndTarget.BackgroundColor = transparent ? Colors.Transparent : Colors.Black;
System\Windows\Shell\WindowChromeWorker.cs (3)
953_hwndSource.CompositionTarget.BackgroundColor = SystemColors.WindowColor; 963_hwndSource.CompositionTarget.BackgroundColor = Colors.Transparent; 1149_hwndSource.CompositionTarget.BackgroundColor = SystemColors.WindowColor;