* TODO [#B] display: Make it possible to "highlight the last move"
* TODO [#B] display: Make highlight colors easily customizable
+* TODO [#B] display: Draw move highlights as a border, not a background
+* TODO [#B] display: Always validate the display before painting
+ This will require adding a new text property to each square on the board,
+ `chess-piece', so that the validator can walk through the displayed board
+ and ensure that it matches the known position for that board.
* DONE [#B] ics: Make a refresh act like an assert
- State "DONE" [2008-08-29 Fri 06:28]
Compare with our current known board and trigger an error if it doesn't