public void setVertexShape(String vertexType, VertexShape vertexShape) {
		checkVertexType(vertexType);
		vertexShapeMap.put(vertexType, Objects.requireNonNull(vertexShape));
	}
Sets the {@link VertexShape} to use for vertices with the given vertex type
@param vertexType the vertex type for which to set its shape
@param vertexShape the {@link VertexShape} to use for vertices with the given vertex type
Ghidra/Framework/Graph/src/main/java/ghidra/service/graph/GraphDisplayOptions.java