If you want to go the full aesthetic route and add in widgets, plus be able to hide your old app icons, you'll need to have iOS 14.

5. Change back to regular icons anytime To return to normal app icons, repeat the same steps by long-pressing your homescreen, tapping Edit, and selecting Default.

This setting turns your app icons transparent, and widgets too. So if you want the full glass effect, read on. In iOS 18, Apple introduced Dark Mode and Tinted app icons.