@Override
				public void actionPerformed(ActionContext context) {
					// this callback is when the user clicks the button
					LayoutProvider<SampleVertex, SampleEdge, SampleGraph> currentUserData =
						getCurrentUserData();
					changeLayout(currentUserData);
				}
A {@link ComponentProvider} that is the UI component of the {@link SampleGraphPlugin}.  This
shows a graph of the plugins in the system.
Ghidra/Extensions/sample/src/main/java/ghidra/examples/graph/SampleGraphProvider.java