Color Panel & Text Field Class - NSObject
Customization features can get buggy, adds testing cycles, and lots of other nightmares so templates get you to a release. That said, I would like to see a build that uses the classes that are exposed in NSObject.
You will have a hard time making everyone happy with the random modes and themes that are requested (daily)
If you give users the option to "reset" by providing a "restore defaults" option, slap a beta label on it, it's totally cool. ;)