jQuery UI is an open source library of interface components — interactions, full-featured widgets, and animation effects — based on the stellar jQuery javascript library . Each component is built according to jQuery's event-driven architecture (find something, manipulate it) and is themeable, making it easy for developers of any skill level to integrate and extend into their own code. NOTE: This package is maintained on behalf of the library owners by the NuGet Community Packages project at http://nugetpackages.codeplex.com/