Hide chat window?

So I was talking Roll20 up to a gaming buddy of mine; he was talking about hooking his computer up to his TV and using that in place of a game board. I looked, but maybe I'm blind; I couldn't find a way to hide the chat/options window, nor the 'people connected' stuff in the bottom left corner. Is there a way to hide these? If not, I'll make this an official suggestion: Capability to hide the chat/options windows and the 'players connected' notation, in case you do something like this (HDMI out to TV, etc.)

I have been wondering if anyone had tried using roll20 as a tabletop for an in-person game. This could work quite well with two computers. One for the GM and another player computer with a projector/HDTV. I agree it would be nice to have a full screen game board...perhaps an auto-hide feature so it's easy to pull up when needed.

Yeah, that's what my friend was talking about possibly using it for. Having the board and tokens and everything be up on his big TV, with the table less cluttered with minis, board, and such, and the players RPing and dictating where and what they move. I think it'd be a neat use of this program to facilitate at-home play.