@Override
	public ImageIcon getNavIcon() {

		BufferedImage image = new BufferedImage(14, 14, BufferedImage.TYPE_INT_ARGB);
		Graphics2D g = image.createGraphics();

		int height = MarkerSetImpl.MARKER_HEIGHT;
		int width = 2 * height;
		int x = (14 - width) / 2;
		int y = (14 - height) / 2;

		g.setColor(markerColor);
		g.fillRect(x - 1, y - 1, width + 2, height + 2);

		return ResourceManager.getImageIconFromImage("Area Marker Set Nav Icon", image);
	}
@param markerManager manager for these area markers
@param name the name for this area marker
@param desc the description associated with this area marker
@param priority to sort out what displays on top, higher is more likely to be on top
@param showMarkers true indicates to show area markers (on the left side of the browser.)
@param showNavigation true indicates to show area navigation markers (on the right side of the browser.)
@param colorBackground the color of marked areas in navigation bar
             If color is null, no results are displayed in the associated marker bar.
@param markerColor the color for the marker
@param program the program to which the markers apply
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/marker/AreaMarkerSet.java