Windows 10 ‘Neon’ Design Language With ‘Acrylic’ Window Blurring Leaked In New Screenshots
Before we go any further, let us point out that Project Neon represents an incremental upgrade to Windows 10's UI, or Microsoft Design Language (MDL), and not a complete facelift. The change will not be anywhere near as jarring as going from the UI in Windows 7 to the Metro interface in Windows 8. For the most part, Windows 10 will still look and function the same, it is just getting some visual bling—the end result will still be considered MDL2, the same as it is now.
Acrylic looks to be the biggest visual change. The three types touched on above will be known as Side-Nav Acrylic, Background Acrylic, and In-App Acrylic. These visual effects tie in with other elements that Microsoft is working on, specifically something a pair of goodies it calls Conscious UI and Connected Animations.

This is something that is already implemented in Microsoft's Groove Music app for Windows Insiders. When scrolling through the app, the size of the artist's profile picture changes and the background is blurred, as shown in the picture above.

Much of what Microsoft is working on is subject to change between now and when Project Neon is applied. A lot of it will depend on well the effects work and the feedback of Windows Insiders. Until then, Microsoft has plenty in store for Windows 10, including its upcoming Creators Update (Redstone 2) followed by another major update (Redstone 3) before the end of the year.