public void initializeFromOptions(Tool tool) {
		if (tool == null) {
			return;
		}
		ToolOptions toolOptions = tool.getOptions("Graph");
		toolOptions.addOptionsChangeListener(this);
		updateOptions(toolOptions.getOptions(rootOptionsName));
		registeredWithTool = true;
	}
Loads values from tool options

@param tool the tool from which to update values.
Ghidra/Framework/Graph/src/main/java/ghidra/service/graph/GraphDisplayOptions.java