The app has been updated to customize OS X 10.8 system icons but the company says there is a catch or two.
In Mountain Lion, Apple changed how the Dock is rendered, so it's no longer possible to customize the Dock's look. (You can still customize the indicator lights!) Also, CandyBar still can't change the internal icons of Mac App Store apps, due to code signing.
Since the future of the app is uncertain they've made it free but unsupported.
That said, being CandyBar fans, we'll strive to keep CandyBar up-to-date with minor 10.8 releases, so you can keep using it for the foreseeable future! But, if something major changes, on the level of the Dock changes in 10.8, we can't guarantee compatibility.
You can get the app from the link below. Notably, they've also handed off the app to Iconfactory who may keep it alive in some way.
Read More [via Peter]