The icons are mostly derived work from other icons. As such they are
licensed accordingly to the original license:

    Eclipse: Eclipse Public Licence see icon_LICENSE_Eclipse.txt
    Nuvola: LGPL license as described in icon_LICENSE_Nuvola.txt
    Crystal: LGPL license as described in icon_LICENSE_CP.txt
    OOo: LGPL license as described in icon_LICENSE_OOo.txt
    GV: Gael Varoquaux: BSD-licensed

Unless stated in this file, icons are work of enthought, and are released
under a 3 clause BSD-like license.

Files and original authors:
----------------------------------------------------------------
mayavi/core/images/:
                            add.ico | GV
                     add_module.png | Crystal
                      add_scene.png | Crystal
                     add_source.png | Crystal
                           file.png | GV
                         filter.ico | Nuvola
                         module.ico | Crystal
                  modulemanager.ico | Crystal
                          scene.ico | Crystal
                         source.ico | Crystal

mayavi/core/ui/images/:
                     add_filter.png | Nuvola
                     add_module.png | Crystal
                      add_scene.png | Crystal
                     add_source.png | Crystal
                            add.ico | GV
                    help_action.png | GV
                             m2.png | GV
                            mv2.ico | GV

mayavi/images/:
                             m2.png | GV
                       m2_about.jpg | GV

tvtk/pipeline/images/:
                          actor.png | Nuvola
                         camera.png | GV
                     coordinate.png | Crystal
                         filter.png | Nuvola
                    lookuptable.png | OOo
                         mapper.png | Crystal
                       polydata.png | Nuvola
                       property.png | Eclipse
                         reader.png | Crystal
                       renderer.png | Crystal
       rendererwindowinteractor.png | Nuvola
                 rendererwindow.png | Crystal
                         source.png | OOo
                        texture.png | Eclipse
                         window.png | Eclipse
                         writer.png | GV

tvtk/pyface/images/16x16/:
                      configure.png | Nuvola
                     fullscreen.png | GV
                      isometric.png | Nuvola
                   origin_glyph.png | Enthought
                       parallel.png | GV
                           save.png | Crystal
                         x-axis.png | Eclipse
                         y-axis.png | Eclipse
                         z-axis.png | Eclipse

tvtk/tools/images/:
                          scene.ico | Crystal

examples/tvtk/images/:
                        masonry.jpg | BSD-like license