public VertexShape getVertexShape(AttributedVertex vertex) {
		if (vertexShapeOverride != null) {
			String shapeName = vertex.getAttribute(vertexShapeOverride);
			if (shapeName != null) {
				VertexShape shape = VertexShape.getShape(shapeName);
				if (shape != null) {
					return shape;
				}
			}
		}
		String vertexType = vertex.getVertexType();
		return vertexShapeMap.getOrDefault(vertexType, defaultVertexShape);
	}
Returns the {@link VertexShape} that will be used to draw the vertex's shape
@param vertex the vertex for which to get the shape
@return  the {@link VertexShape} that will be used to draw the vertex's shape
Ghidra/Framework/Graph/src/main/java/ghidra/service/graph/GraphDisplayOptions.java