Included with wxWidgets is a variety of contributed libraries, found in the contrib subdirectory of your wxWidgets distribution. These are libraries that are distributed with wxWidgets but are not part of the core toolkit. Although they are not officially supported and may not be actively maintained by the core wxWidgets developers, they can still be very useful. It's easy to build the contrib libraries and use them in your projects.Appendix D, "Other Features in wxWidgets."