protected List<ActionState<T>> getStates() {
		return actionStates;
	}
Extension point: Get the states to display when the button is clicked

<p>
This is called when the button is clicked, immediately before the menu is displayed. It is
generally recommended to ensure the current state is included in this list. The states will
be displayed in the order of the returned list.

@return the list of possible states
Ghidra/Framework/Docking/src/main/java/docking/menu/MultiStateDockingAction.java