private String createTitle() {
		Set<FGVertex> vertices = groupVertex.getVertices();
		int size = vertices.size();
		AddressSetView addresses = vertex.getAddresses();
		Address minAddress = addresses.getMinAddress();
		Address maxAddress = addresses.getMaxAddress();
		return "Grouped Vertex - " + size + " vertices [" + minAddress + " - " + maxAddress + "]";
	}
A bit of a hack that triggers the text area to update its preferred height now before we
render so that it doesn't change later.
Ghidra/Features/FunctionGraph/src/main/java/ghidra/app/plugin/core/functiongraph/graph/vertex/GroupedFunctionGraphComponentPanel.java