OS X Yosemite: Green Dot is now Full Screen

Apple:

Take the red, yellow, and green “stoplights” in the corner of every app window. Not only have we streamlined their look, but we’ve also updated their functions. Close, minimize, and maximize are now close, minimize, and full screen, eliminating the extra full-screen control and consolidating the window controls in one place.

I hope this is not like Full Screen mode in Chrome, but more like Presentation Mode with all the chrome hidden.