Fluent UI
Implements Microsoft's WinUI3 in Flutter
...The package pays close attention to theming, typography, and control states, so hover, focus, pressed, and disabled behaviors feel native on desktop. It supports high-DPI rendering and keyboard navigation, which are essential for accessibility and productivity scenarios. Because it’s built in Flutter, developers can target Windows while keeping the door open to other platforms using similar component structures. The library is organized to be both drop-in for simple screens and extensible for custom controls or branded variations. ...