
At the WWDC, it is expected that iOS 18 will introduce new features related to app icons, including the ability to recolor app icons and place them anywhere on the Home Screen without the restrictions of the traditional grid structure4. This will allow users to organize their applications in a way that suits them best and make their iPhone more personalized. Additionally, it is reported that iOS 18 will allow users to change the color of app icons, enabling users to customize their device further.

According to MacRumors' report, the new app icon color change feature in Dark Mode will tint the app icons with a dark color to match the darkened system chrome. This visual adjustment aims to provide a more cohesive appearance when using Dark Mode. The exact implementation method is not known, but it is suggested that app developers may be able to choose a light icon and a dark icon, allowing the operating system to automatically switch when the system Appearance setting changes. Alternatively, the OS might use a single asset and render a dark theme tint to it programmatically. This feature is expected to be available for both Apple's apps, such as Music and Mail, as well as third-party apps.

Yes, according to the reports, developers will be able to choose a light icon and a dark icon for their apps in the upcoming iOS 18, and the operating system will automatically switch between them when the system Appearance setting changes23. This means that app icons will change color in Dark Mode for the first time, with a dark tint to match the darkened system chrome.