@Override
	protected void programActivated(Program program) {
		for (OverviewColorService service : activeServices.keySet()) {
			service.setProgram(program);
		}
	}
Installs the given {@link OverviewColorService} into the Listing margin bars.
This is public only for testing and screenshot purposes.
@param overviewColorService the service to display colors in the Listing's margin bars.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/overview/OverviewColorPlugin.java