iOS 7 represents the biggest change to Apple’s design principles since the original iPhone, the company said — and that means lots of work for the developers who want their apps to look native on the platform. To that end, Apple published a user interface transition guide for iOS developers today, TechCrunch reports.
The guide, which is available only to members of Apple’s developer program, walks designers through iOS 7 changes including edge-to-edge layouts, translucent menu and status bars, and buttons without borders. It also describes the three core themes of iOS 7. Those themes, as quoted by TechCrunch:
Deference. The UI helps users understand and interact with the content, but never competes with it.
Clarity. Text is…