Project Neon is an update to both MDL (Microsoft Design Language [version 2]) and the Windows SDK.
In MDL, Project Neon will:
- Add transparency effects back. These take up more than just the title bar, and is named Acrylic.
- Improve iconography.
- Encourage developers to add "special effects" to their applications.
Groove and Photos are two great examples of apps that demonstrate neon-like design languages. I have examples pictured below:
In the SDK, Project Neon will:
- Re-structure XAML to make it more endurable and intuitive to attract developers.
- Offload more work from developers with things like animations (use WP8 and you'll know what i'm talking about) and templates ported also from the Windows 8 runtime, and Composable Shell.
Composable shell is what UWP was meant to be. Currently, developers have to put in a lot of effort to make the applications scale well across devices, like making the hamburger sidebar disappear on smaller devices, or removing columns from "column-by-column" apps (like Mail).
Composable shell aims to offload all of that work off the developer and on the Windows Runtime. I'm assuming this means more XAML elements to implement, so expect more stuff (like expanding lists) to be included as a bonus.