I agree... three slightly different shades of grey? Since it is for the OS and Apple's own application, I would think that sticking to one shade each of their

I agree... three slightly different shades of grey? Since it is for the OS and Apple's own application, I would think that sticking to one shade each of their main colors (e.g. blue, red, green, purple) would be better. So many colors seems a little over the top and difficult to communicate in a style guide which could get mixed up and cause confusion for users. I've heard across the interwebs that the color scheme for iOS 7 was something of a circus. I hadn't noticed it yet but this page just put it out there.