Turaco was an MS-DOS (DJGPP, LibSDL, Allegro) application that loaded and saved graphics ROMs for some arcade games. It let the user edit the graphics, manipulate sprites, etc. It was basically a very specifically targetted paint program.
This project came out of development of AGE, the Arcade Graphics Editor, which was primarilly headed by Ivan Mackintosh. AGE was his project which I heavily contributed to, and Turaco was my project which he contributed to afterwards. Turaco was a complete rewrite, learning from design issues from AGE, and improving upon them.
Some versions of AGE and Turaco were used by the homebrew community for a while.