Want to make your iPhone’s Phone app and contact cards more visually appealing? Adam Engst walks you through the often frustrating process of customizing contact avatars and posters.

Hitting Return at the end of the prompt sends the AI on its way. Now, let's look at the result. The leftmost pane shows the AI discussing the change and how it works. The middle pane shows more code.

A look at clever iPhone apps that smooth out daily routines, fix missing features in iOS, and help you get more out of a new ...