private static Image drawNewWindow() {

		BufferedImage image = new BufferedImage(32, 32, BufferedImage.TYPE_INT_ARGB);
		int headerColor = new GColor("color.bg.header.active").getRGB();
		int v = CURSOR_COLOR.getRGB();
		for (int i = 0; i < 5; i++) {
			for (int j = 0; j < 14; j++) {
				image.setRGB(j, i, headerColor);
			}
		}
		for (int i = 0; i < 14; i++) {
			image.setRGB(i, 0, v);
			image.setRGB(i, 10, v);
		}
		for (int i = 0; i < 10; i++) {
			image.setRGB(0, i, v);
			image.setRGB(14, i, v);
		}
		return image;
	}
The cursor values used when drag-n-dropping dockable components
Ghidra/Framework/Docking/src/main/java/docking/HeaderCursor.java