They may have begun refining their design language but is it getting any better? In my opinion it isn't. Here's an example: in OS X Yosemite, buttons and textboxes are rendered the same. (See Safari toolbar for example: look at the buttons and the address textbox.) Also look at Xcode: Look at the status label on the toolbar (which used to be an "LCD".) It too is displayed with the same bevels. So labels, buttons and textboxes are indistinguishable based on their rendering. Who here thinks this is an improvement? They are getting the basics wrong.