The color picker was commented on a number of times during beta testing so we’ve decided to give it away
It’s written in cocos2d and uses the CCControl approach suggested by YannickL on the forum. Color pickers can be fiddly at the best of times so Stu (@creativewax) designed this one to give a much larger color selection area, particularly useful on mobile devices.

You can get further details and the source code from here at the moment, it’ll be moving onto github once we have a little more time.
We’ve open sourced the Sketchshare colour picker
January 18, 2012 | 0 comments