FAHLMAN This is a fun application. Most of the built in effects are cool. A couple of suggestions.
One, implement this as a Preference Pane instead of a stand alone application. I would prefer this for a couple of reasons reasons. The first reason is because it's icon wouldn't need to be in the dock. Second, it would continue to work all the time because it couldn't be hidden. Third, it could also be set to start at login with out adding it to the startup applications.
Two, move the Effects folder out of the /Applications folder and in to /Library/Application Support/
Three, allow for exporting and importing of effects. Maybe the developer could host user-submitted effect at his website.
(Version 1.30)