http://h34nug3iwqjf2376fmmzdhgqivckzemcujmarlptfqeqtq7vya47yyad.onion/2007/03/page/2/index.html
So, the first button, the one with the + sign, controls the retract behavior. If the + button is pressed, Yakuake will stay on top until you hit the activation key (F12). The middle button has a downward pointing arrow, which gives you a quick configuration menu, and next to it, there’s the X button, which quits Yakuake.