It seems like Yosemite has a problem with some Template icons, and one result of this is the Keyboard Maestro status menu icon appears dimmed. Here is a non-Template version of the Iconoholic status menu icons that can be used in the mean time.
@Stephen: I find that OS X is working much better than iOS 8 at the moment. The new beta 3 seems to be stable enough, for me at least, and on two machines.