@Override
	public String toString() {
		return shapeProvider.getName();// + " @ " + level; // + " (" + System.identityHashCode(this) + ')';
	}
A vertex that is a circle shape with a label below the circle to show the given text.
Ghidra/Features/Base/src/main/java/ghidra/base/graph/CircleWithLabelVertex.java