private void removeMarkerSet(Program program) {
		if (markerService != null) {
			if (markerSet != null) {
				markerService.removeMarker(markerSet, program);
			}
		}
	}
A plugin to provider actions for manipulating the colors of the {@link CodeViewerService}.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/colorizer/ColorizingPlugin.java