private void waitForPathHighligter() {
		waitForSwing();
		VisualGraphPathHighlighter<AbstractTestVertex, TestEdge> highlighter =
			graphComponent.getPathHighlighter();
		waitForCondition(() -> !highlighter.isBusy(), "Timed-out waiting for Path Highlighter");
		// waitForAnimation(); don't need to do this, as the edges are hovered while animating
		waitForSwing();
	}
Returns the vertex for the given ID, creating it if it does not yet exist.

@param id the vertex id
@return the vertex
Ghidra/Framework/Graph/src/test.slow/java/ghidra/graph/viewer/edge/VisualGraphPathHighlighterTest.java