@Override
	public void setFocused(boolean focused) {
		super.setFocused(focused);
		textArea.getCaret().setVisible(focused);
	}
A {@link VisualVertex} implementation that provides a component with a docking header that 
is clickable.
Ghidra/Framework/Graph/src/main/java/ghidra/graph/viewer/vertex/DockingVisualVertex.java