Adopting Advanced Features of the New UI of OS X Yosemite

OS X Yosemite introduces a refined new look, and Cocoa provides you with a rich set of APIs and facilities to embrace this new look in your application. Discover how to properly use these APIs to bring the refinement, translucency, and vibrancy of OS X Yosemite to your apps. Dive deep into a number of case studies demonstrating applications with different designs and needs.

WWDC 2014 - Session 220 - macOS