public Map<FGVertex, Point> getVertexLocations(FunctionGraph functionGraph) {
		ObjectPropertyMap<SaveablePoint> vertexLocationPropertyMap =
			programUserData.getObjectProperty(FunctionGraphPlugin.class.getSimpleName(),
				LOCATION_PROPERTY_NAME, SaveablePoint.class, false);

		ObjectPropertyMap<SaveablePoint> groupVertexLocationPropertyMap =
			programUserData.getObjectProperty(FunctionGraphPlugin.class.getSimpleName(),
				GROUP_LOCATION_PROPERTY_NAME, SaveablePoint.class, false);

		return getVertexLocationsFromPropertyMaps(functionGraph, vertexLocationPropertyMap,
			groupVertexLocationPropertyMap);
	}
A class to store user graph setting information, such as layout positions, grouping information
and vertex color information.

<P>Note: color information for a given address is stored using the {@link ColorizingService}.
This class will store color information for the vertex itself.
Ghidra/Features/FunctionGraph/src/main/java/ghidra/app/plugin/core/functiongraph/mvc/FunctionGraphVertexAttributes.java