Top 20 NuGet themes Packages

Styles implementing AdonisUI's theme definitions to provide classic look and feel.
Core theme definitions for AdonisUI - a lightweight UI toolkit for WPF applications offering classic but enhanced windows visuals
A update to Component factory's krypton toolkit to support the .NET 4.7 framework.
A update to Component factory's krypton toolkit to support the .NET 4.7.1 framework.
A update to Component factory's krypton toolkit to support the .NET 4.5 framework.
A update to Component factory's krypton toolkit to support the .NET 4.7.2 framework.
Theme manager for Avalonia applications.
A update to Component factory's krypton toolkit to support the .NET 4.8 framework.
Build native UIs for iOS, Android, and Windows Phone from a single, shared C# codebase
These are UI controls with various themes for all programming activities
This is a composite form with various themes. Hence termed Thematic
A update to Component factory's krypton toolkit to support the .NET 4.7 framework demo applications.
A update to Component factory's krypton toolkit to support the .NET 4.0 framework.
Light Theme for Xamarin Forms applications
Dark Theme for Xamarin Forms applications
Bootswatch is a collection of free themes for Twitter Bootstrap. Check it out at bootswatch.com.
An Avalonia UI Framework theme editor view models.
A update to Component factory's krypton toolkit to support the .NET 4.6.1 framework.
A update to Component factory's krypton toolkit to support the .NET 4.5.2 framework.
Themes for CodeMirror http://codemirror.net/demo/theme.html