type location content
TODO termbox2.h:1655
Assert global.back.(width,height) == global.front.(width,height)
TODO termbox2.h:1896
\r, \t, \v, \f, etc?
TODO termbox2.h:2183
Reorder TB_CAP_* so more critical caps come first.
TODO termbox2.h:2724
Harden against errors encountered mid-resize