Xcode 5 Start to Finish: iOS and OS X Development

The Assets Catalog

That leaves the images themselves. I drew up a couple of badge images (PNG, with transparency) and produced single-resolution and double-resolution (60 × 60 pixels) versions (find these in the icons and images folder in the sample code):

Despondent.png - 30 × 30 pixels

[e-mail] - 60 × 60 pixels

Elated.png - 30 × 30 pixels

[e-mail] - 60 × 60 pixels

Note

If you can, draw up at least your simple images in a vector-drawing ...