@Override
	protected JMenuItem doCreateMenuItem() {
		DockingCheckBoxMenuItem menuItem = new DockingCheckBoxMenuItem(isSelected);
		menuItem.setUI(DockingCheckboxMenuItemUI.createUI(menuItem));
		return menuItem;
	}
Action for use in the composite data type editor.
This action has help associated with it.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/compositeeditor/HexNumbersAction.java