

Choose the Single Size option in the app icon’s Attributes inspector in the asset catalog. Simplify an app icon with a single 1024x1024 image that is automatically resized for its target.

Here’s the announcement in the Xcode 14 release notes: Hard to believe that wasn’t possible until now. You can also double-click an image slot to directly open the file panel to choose the image file.

Instead of the full set of icon sizes there’s a single slot for a 1024×1024 point image that the system resizes as needed. Starting with Xcode 14, when you create a new iOS project, the app icon in the asset catalog defaults to the new “Single Size”. Xcode 14 also adds a few extra app icon sizes. It feels like it’s been a long time coming but Xcode 14 can automatically create the full set of app icon sizes for you from a single 1024x1024 image.
