@Override
	public void setDefaultBackgroundColor(Color c) {
		defaultBackgroundColor = c;
	}
Default {@link BackgroundColorModel} for the ListingPanel where the color returned
for an index is based on that corresponding address having a color set in the
program's database. (You can "paint" colors over address ranges).
Ghidra/Features/Base/src/main/java/ghidra/app/util/viewer/listingpanel/PropertyBasedBackgroundColorModel.java