This is an addition to the list of previously posted slow-motion hints.
Within iTunes preferences screen, pressing Command-[ and Command-] changes from one panel to the next or previous; holding Shift at the same time enables slow-motion animations for the changes.
Vestigial slow-motion in Carbon-based app-forms...?
Mac OS X Hints
http://hints.macworld.com/article.php?story=20090319212626745