Some spotlight managers (like the scroll pager) show other pages next to the active one.
These other pages are perfectly active and interactable, which is a bit dangerous since they are most of the time not rendered completely so the user cannot know what he's doing. Most often than not, interaction with non-current pages is a mistake.
The spotlight manager should inhibit interaction with non-current pages, and then each manager could decide to render them dimmer, or darker, to give a visual clue that they are disabled.