Advanced and secret iPhoto 6 tools

Very weird. I wonder how these obscure capabilities were discovered. Pretty much an easter egg.

Macworld: Mac OS X Hints: Use advanced iPhoto 6 edit tools

iPhoto 6 has some nice built-in editing tools, including red-eye correction and retouch. But you can make these tools even more useful by activating a super-secret advanced editing mode. In advanced mode, you’ll be able to control the size and intensity of the retouch brush, as well as the size and ‘brightness’ of the red-eye correction tool.