List<MarkerSetImpl> copyMarkerSets(Program program) {
		MarkerSetCacheEntry entry = markerSetCache.get(program);
		return entry == null ? Collections.emptyList() : entry.copyList();
	}
Buffers requests to repaint and notify of marker changes
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/marker/MarkerManager.java