@Override
	public JComponent getTooltip(FcgVertex v) {
		JToolTip tip = new JToolTip();
		tip.setTipText(v.getName());
		return tip;
	}
A class that provides tooltips for a given vertex
Ghidra/Features/GraphFunctionCalls/src/main/java/functioncalls/graph/renderer/FcgTooltipProvider.java