@Override
	public void renderVertexLabel(RenderContext<V, E> rc, Layout<V, E> layout, V v) {

		String label = rc.getVertexLabelTransformer().apply(v);
		if (label == null) {
			return;
		}

		super.renderVertexLabel(rc, layout, v);
	}
Sets a painter to show an underlying grid. (To see a layout's associated grid, search
for calls to this method and un-comment them)
@param gridPainter A painter that paints the grid that a layout was based on.
Ghidra/Framework/Graph/src/main/java/ghidra/graph/viewer/renderer/VisualGraphRenderer.java