2 DONE container that takes input to switch focus
3 DONE container that does "exposee"
10 TODO listbox (with draw callback and scroll bar)
13 DONE alternate button drawing (like: "Image Text" as in checkbox, or overlay two images); move that stuff out of CheckBox
14 DONE NexuizImageRadioButton (color, crosshair)
15 DONE "half-automatically" self-sizing dialog (by specifying number of "lines" in advance)
21 TODO singleplayer dialog
24 TODO multiplayer dialog