It's crazy, but I can't find it. The HIG seems to talk only about system icons like "favorites", "search", etc.
Is there a special document that talks about this? Also, how must these icons be called and where must they be added?
It's crazy, but I can't find it. The HIG seems to talk only about system icons like "favorites", "search", etc.
Is there a special document that talks about this? Also, how must these icons be called and where must they be added?
Have you checked iTunes Connect Developer Guide? It describes submission related things.
I've only been able to kind of distill it from the HIG, but here's a blog post that's very helpful:
http://kgutteridge.co.uk/blog/2010/07/04/icon-sizes-filenames-for-ios-devices/
Might also check this out too for a bit more crucial info:
mrgan.tumblr.com/post/708404794/ios-app-icon-sizes
This is detailed in Apple's Technical Q&A QA1686: App Icons on iPad and iPhone.