* The default GTK icons were not overridden by the GNOME theme due to
  a bug which was fixed in GNOME 2.15. Once GNOME 2.16 is in wide
  circulation, the GTK icons should be replaced with the equivalent
  GNOME icons.

* Recipe for Creating PBM Versions

1. Edit .xpm image in GIMP.
2. Image > Mode > Indexed. Check Use Black/White Palette and No
   Color Dithering.
3. File > Save As file.xbm.
4. Run xbmtopbm < file.xbm > file.pbm.

Thanks to jan.h.d@swipnet.se for the help.

Alternatively, run 'convert' from ImageMagick:

  convert file.xpm file.pbm


COPYRIGHT AND LICENSE INFORMATION FOR IMAGE FILES

* The following icons are part of Emacs.  All are licensed under the
  GNU General Public License version 3 (see COPYING) or later.
  The xpm and svg files contain copyright and license information, but
  it is reproduced here for convenience.

File: mh-logo.xpm
  Author: Satyaki Das
  Copyright (C) 2003-2017 Free Software Foundation, Inc.

Files: gnus.pbm
  Author: Luis Fernandes <elf@ee.ryerson.ca>
  Copyright (C) 2001-2017 Free Software Foundation, Inc.

Files: splash.png, splash.svg, splash.pbm, splash.xpm
  Author: Francesc Rocher <francesc.rocher@gmail.com>
  Copyright (C) 2008-2017 Free Software Foundation, Inc.

Files: checked.xpm, unchecked.xpm
  Author: Chong Yidong <cyd@stupidchicken.com>
  Copyright (C) 2010-2017 Free Software Foundation, Inc.


* The following icons are from GTK+ 2.x. They are not part of Emacs, but
are distributed and used by Emacs.  They are licensed under the
GNU Library General Public License version 2 or later.  See the source
of the gtk+ package for more information.

  close.xpm copy.xpm cut.xpm help.xpm home.xpm index.xpm info.pbm
  info.xpm jump-to.xpm left-arrow.xpm new.xpm open.xpm paste.xpm
  preferences.xpm print.xpm refresh.xpm right-arrow.xpm save.xpm
  saveas.xpm search.xpm sort-ascending.xpm sort-descending.xpm
  spell.xpm undo.xpm up-arrow.xpm

  back-arrow.xpm and fwd-arrow.xpm are slightly modified undo and redo.
  diropen.xpm is file-manager.png from Gnome hicolor theme.


* The following icons are from GNOME 2.x. They are not part of Emacs,
but are distributed and used by Emacs.  They are licensed under the
GNU General Public License version 2 or later.  See the source of
the gnome-icons-theme package for more information.

Emacs images and their source in the GNOME icons stock/ directory:

  attach.xpm                document/stock_attach
  bookmark_add.xpm          actions/bookmark_add
  cancel.xpm                slightly modified generic/stock_stop
  connect.xpm               net/stock_connect
  contact.xpm               net/stock_contact
  data-save.xpm             data/stock_data-save
  delete.xpm                generic/stock_delete
  describe.xpm              generic/stock_properties
  disconnect.xpm            net/stock_disconnect
  exit.xpm                  generic/stock_exit
  lock-broken.xpm           data/stock_lock-broken
  lock-ok.xpm               data/stock_lock-ok
  lock.xpm                  data/stock_lock
  redo.xpm                  generic/stock_redo
  search-replace.xpm        slightly modified generic/stock_search-and-replace
  next-page.xpm             navigation/stock_next-page
  refresh.xpm               generic/stock_refresh
  separator.xpm             ?
  show.xpm                  slightly modified document/stock_new
  sort-ascending.xpm        slightly modified data/stock_sort-ascending
  sort-column-ascending.xpm data/stock_sort-column-ascending
  sort-criteria.xpm         data/stock_sort-criteria
  sort-descending.xpm       slightly modified data/stock_sort-descending
  sort-row-ascending.xpm    data/stock_sort-row-ascending
  zoom-in.xpm               navigation/stock_zoom-in
  zoom-out.xpm              navigation/stock_zoom-out

  next-node.xpm and prev-node.xpm are from gthumb version 2.0 (part of
  GNOME 2.x) where they are called next-image-24.png and prev-image-24.png.
  up-node.xpm is just next-node.xpm rotated 90 degrees.

  Some icons in the mail/ and gnus/ subdirectories are also taken
  from this source (see their separate README files).

The images in the low-color/ subdirectory are low-color versions of
the files of the same name in this directory, and are subject to the
same conditions.

The *.pbm files were generally converted from *.xpm by running GIMP or
ImageMagick's 'convert'.
