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.

Microsoft has also been using transparency effects in its Windows operating system since it launched Windows Vista in 2007, complete with its own Aero Glass theme. The current version of Windows 11 now uses Microsoft’s Fluent Design language, which increasingly has more of a focus on 3D, colorful, and playful elements.

Apple unveiled iOS 26, macOS 26, and watchOS 26 at WWDC 2025 and these developer betas are now available for testing.