@Override
		public void actionPerformed(ActionContext context) {
			FGColorProvider colorProvider = controller.getColorProvider();
			colorProvider.setVertexColor(actionVertex, color);
		}
This is used by our button above to show a popup.  We need to override the
value here, since
Ghidra/Features/FunctionGraph/src/main/java/ghidra/app/plugin/core/functiongraph/graph/vertex/SetVertexMostRecentColorAction.java