Very good extension, but can you add an option to make it invisible ? I can't stand with the highlighted video player and the UI visible at all time. So I enable the extension only when i need it.

Works perfectly, but two things about it drive me crazy: The default shortcuts for it are also shortcuts YouTube uses, so they conflict. And, when I try to change the shortcuts, they're displayed with white text on a white background, so I can't even read them.