-\item[{\bf Object Graphics Library}]
-OGL defines an API for applications that need to display objects connected by lines.
-The objects can be moved around and interacted with.
-You can find this in {\tt contrib/src/ogl}, {\tt contrib/include/wx/ogl}, and {\tt contrib/samples/ogl}.
-\item[{\bf Frame Layout library}]
-FL provides sophisticated pane dragging and docking facilities.
-You can find this in {\tt contrib/src/fl}, {\tt contrib/include/wx/fl}, and {\tt contrib/samples/fl}.
-\item[{\bf Gizmos library}]
-Gizmos is a collection of useful widgets and other classes. Classes include wxLEDNumberCtrl,
-wxEditableListBox, wxMultiCellCanvas.
-You can find this in {\tt contrib/src/gizmos}, {\tt contrib/include/wx/gizmos}, and {\tt contrib/samples/gizmos}.