Who Designed iOS 7’s Icons? Apple’s Marketing Department | Co.Design: business innovation design
Many of the new icons were primarily designed by members of Apple’s marketing and communications department, not the app design teams. From what we’ve heard, SVP of Design Jony Ive (also now Apple’s head of Human Interaction) brought the print and web marketing design team in to set the look and color palette of the stock app icons. They then handed those off to the app design teams who did their own work on the ‘interiors’, with those palettes as a guide.