If you choose Tinted app icons rather than the Dark style, iOS applies a different algorithm to change the colors of icons. Tinted icons feature an accent color on a dark black background.

While there may be debate about whether iOS 19 will be a UI revolution or evolution, there does seem to be a consensus view on app icons.Namely, that they are likely to switch from squircles ...

While app icons will likely remain locked to an invisible grid system on the Home Screen, to ensure there is some uniformity, our sources say that users will be able to arrange icons more freely ...