plt/racket — pull request #83 by soegaard (2012-02-26 20:25:46+00:00)
Title: Bugfix: The orange triangle is now updated after each turtle command. 

See http://www.mail-archive.com/users@racket-lang.org/msg10770.html

Furthermore: The erase pen is now 2 pixels wide: Before (draw 100) (erase 100) didn't erase the line, but gave a grey line.

The bug was introduces when (flip-icons) from the old xor-implemtation was removed.