@Override
	public FGLayout getFGLayout(FunctionGraph graph, TaskMonitor monitor)
			throws CancelledException {
		return new FGFlowChartLayout(graph, false);
	}
Makes the Flow Chart Layout available for the function graph feature.
Ghidra/Features/FunctionGraph/src/main/java/ghidra/app/plugin/core/functiongraph/graph/layout/flowchart/FlowChartLayoutProvider.java