Yosemite – UI Kit

Yosemite---UI-Kit

OS X Yosemite Vector GUI for Adobe Illustrator available for free. It features all main UI Components and it is Retina ready @2x. Freebie designed by 

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DesignerMill

Collection of free PSDs, Sketch files, free Fonts and other resources for designers, updated every day on DesignerMill.