I’m updating my app’s alternate icons using UIApplication.shared.setAlternateIconName, and I noticed that in iOS 26, Xcode now supports the new .icon file format for App Icons.
Is it possible to reference .icon files directly for alternate icons? Or does setAlternateIconName still only support traditional .png assets inside the AppIcon set?
I couldn’t find any documentation confirming this either way, and I want to ensure compatibility with the new format while supporting alternate icons.
Any clarification or Apple documentation link would be greatly appreciated!