On top of looking pretty, Apple says that it’s also functional. Liquid Glass UI elements will be able to expand and contract with nice-looking animations to adapt to what the app needs it to do. It also works with light and dark modes along with Apple’s new clear mode, which makes all of your icons look like glass.

At WWDC 2025, Apple changed how we interact with our devices with the introduction of a new user interface it calls Liquid Glass. Apple CEO Tim Cook described it this way: “Expressive. Delightful. But still instantly familiar.”

The old saying, “if you wait long enough, everything comes back into style eventually,” is usually attributed to the fashion industry, but it seems to apply to pretty much anything, especially mobile phone interface design.