Microsoft has unveiled its new design language, or rather system, which lays out the guiding principles governing the behavior and appearance of apps across PCs, smartphones and headsets.
The Fluent Design System, which was called Neon in earlier leaks, is Microsoft's third design language, following Aero Glass and Metro.
The five "foundational elements" of the new "design system", as opposed to language, include light, depth, motion, material, and scale. Microsoft hasn't documented Fluent Design in depth, but says light is to draw your attention, depth aims to create space with layers, motion refers to a smooth, non-distractive transitions between tasks, while material aims to give digital objects a sense of physicality. Scale refers to 2D and 3D designs.
Fluent Design elements are meant to offer a consistent look and feel across all form factors, from desktops to phones, and Xbox to mixed-reality headsets. It offers guidance on how apps should handle different inputs, such as the mouse, Surface Dial, pen and from the virtual assistant Cortana.
Microsoft will gradually roll out Fluent Design across its own apps, starting with the Windows 10 Fall Creators Update. It will also appear in Microsoft's apps for iOS and Android.
Microsoft has published details about Fluent Design's Acrylic transparency effect and related tools, which Microsoft recommends for in-app navigation and commanding elements.
Microsoft's video demonstration of the new design scheme offers a very brief glimpse of a number of its desktop apps reimagined with Fluent Design, including the Windows 10 home screen, Mail client, calendar, clock, and pen support for Bing. The Groove Music app, which appeared in the Neon leak, already features this new design.