Clicking the lightbulb to reveal the hidden elements will also links the are load but with their visibility switched off in the visbility / Graphics dialog, as well as categories that are hidden.
It would be very helpful if the view mode would only show elements that the user him/herself has chosen to hide, thereby fullfilling the promise of a "reveal hidden elements" mode rather than show show a big mess of all elements that happen to be invisible. This would help greatly in finding user hidden single elements for unhiding.