Customize the Home Screen Tap "Edit" at the top left ... changing the appearance of your icons. Choose Your Theme Scroll ...

According to the release notes for version 3.7.0 of the TestFlight app for iOS, the update adds a dark icon and also improves support for the painted icon mode introduced with iOS 18. While iOS ...

then tap the Edit button, followed by Customize. Along the bottom of the resulting menu are a few buttons that can be used to ...