The UI design was changed in OS X 10.10, where for the first time the color pinwheel actually rotates, instead of the shaded, translucent layer on top of the color pinwheel, in previous versions.
The UI design was changed in OS X 10.10. The color pinwheel actually rotates in previous versions. This is instead of the shaded, translucent layer on top of the color pinwheel. This is for the first time.