Microsoft is bringing Fluent Design to the Settings app in Windows 10 Redstone 4

[Windows Central]

Microsoft is bringing Fluent Design to the modern Settings app in Windows 10 Redstone 4.
Windows 10 Redstone 4 is shaping up to be the update for die-hard user interface crazies like myself. We're already seeing improvements to apps like Mail and Calendar, and more Fluent Design elements are finally showing up throughout the OS like Start and the Action Center in the latest Insider builds.

Full story from the WindowsCentral blog...