The Libraries consist of a fairly full set of support engines.  Complete documentation is available here which desribes every class, interface, enum, method, property, and event that is supported.  The libaries will be periodially updated as new support and documentation is provided.

   
LIBRARYDOCUMENTATION C#
.NET WPF
C#
Silverlight
C++
Fox Toolkit

El:   A base library for generic programming support.

El.chm Yes Yes Yes

ElScript: Script interpreter support.

ElImage: Imaging library.  Marching ants, Shapes, Colors and Colorspaces, Image processing.

ElGUI: Windowing resource support with many controls and window types.  MVC framework, Action framework, Messaging system,  Drawing support.

ElApp: The Application class along with OS support functionality.

ElHome.chm Yes

MDI via
AvalonDoc
Yes
(minor limitations)
Yes

Linux And
 Windows support
ElRender: 3d Rendering support through Axiom Engine
Includes 3d math functions via Triangle and Vector3d classes.
ElRender.chm Yes No No
ElAudio: Midi and Notes library. ElAudio.chm Yes No No