@Override
	public GraphDisplayProvider getGraphDisplayProvider(String providerName) {
		for (GraphDisplayProvider provider : graphDisplayProviders) {
			if (provider.getName().equals(providerName)) {
				return provider;
			}
		}
		return null;
	}
Action for selecting a {@link GraphDisplayProvider} to be the currently active provider
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/graph/GraphDisplayBrokerPlugin.java