what is glass ui?

Asked on 06/11/2025

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Glass UI, specifically referred to as "Liquid Glass" in Apple's design language, is a new visual and interactive design element introduced at WWDC 2025. It is a dynamic, translucent material that creates a distinct functional layer in the user interface, floating above the content. This design element is used to enhance the visual depth and interactivity of apps across Apple's platforms, including iOS, iPadOS, and macOS.

Liquid Glass is designed to adapt to its environment, changing its appearance based on the surrounding content and lighting conditions. It provides a sense of elevation and separation between different UI elements, making it ideal for controls and navigation that need to stand out. The material is characterized by its specular highlights, refraction, and the ability to dynamically morph, creating a more fluid and organic interaction experience.

For more detailed information on Liquid Glass, you can refer to the session Meet Liquid Glass from WWDC 2025.