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

Project                 License                   File
----------------------------------------------------------------------------
Eclipse                 Eclipse Public License    image_LICENSE_Eclipse.txt
Enthought               BSD 3-Clause              LICENSE.txt
GV (Gael Varoquaux)     Public Domain             N/A
Nuvola                  LGPL                      image_LICENSE_Nuvola.txt
OOo                     LGPL                      image_LICENSE_OOo.txt

Unless stated in this file, icons are the work of Enthought, and are
released under a 3 clause BSD license.

Files and orginal authors:
----------------------------------------------------------------------------
pyface/action/images:
                         action.png | Eclipse

pyface/images:
                          about.jpg | Enthought
                     background.jpg | Enthought
                    caret_close.png | Enthought
                     caret_open.png | Enthought
                          close.png | GV
                image_not_found.png | Nuvola
                 panel_gradient.png | Enthought
            panel_gradient_over.png | Enthought
                       question.png | GV
                         splash.png | Enthought

pyface/dock/images:
            bar_feature_changed.png | Enthought
           bar_feature_disabled.png | Enthought
               bar_feature_drop.png | Enthought
            bar_feature_no_drop.png | Enthought
             bar_feature_normal.png | Enthought
                     close_drag.png | GV
                      close_tab.png | GV
                   feature_tool.png | GV
                      sh_bottom.png | Enthought
                      sh_middle.png | Enthought
                         sh_top.png | Enthought
                          shell.ico | Enthought
                        sv_left.png | Enthought
                      sv_middle.png | Enthought
                       sv_right.png | Enthought
            tab_feature_changed.png | Enthought
           tab_feature_disabled.png | Enthought
               tab_feature_drop.png | Enthought
            tab_feature_no_drop.png | OOo
             tab_feature_normal.png | OOo
                   tab_scroll_l.png | Enthought
                  tab_scroll_lr.png | Enthought
                   tab_scroll_r.png | Enthought
                         window.png | Eclipse

pyface/ui/wx/grid/images:
                        checked.png | GV
                image_not_found.png | Nuvola
                     table_edit.png | OOo
                      unchecked.png | GV

pyface/tree/images:
                  closed_folder.png | Nuvola
                       document.png | GV
                    open_folder.png | Nuvola

examples/images:
            closed_folder_24x24.png | Nuvola
                  closed_folder.png | Nuvola
                       document.png | GV
                    open_folder.png | Nuvola

examples/dock/images:
                         folder.png | Nuvola
                           gear.png | Nuvola

examples/workbench/images:
                        example.ico | Enthought