Oxygen Icons 4.3.1 (KDE) (oxygen)
link: http://www.oxygen-icons.org/
license: Dual: CC-BY-SA 3.0 or LGPL
formats: svg, png
subdirectory: open_icon_library-devel/icons/oxygen

Icons Used:
address-book-new-3.svg
contact-new-3.svg
edit-find-user.svg
help-contextual-2.svg
office-chart-pie.svg
zoom-original-4.svg
preferences-desktop-accessibility-5.svg


Intrigue Icon Set 0.6.2 [Green] (intrigue)
link: http://simpleinnovation.net/index.php?page=22&source=2&id=2
license: GPLv2
formats: png
subdirectory: open_icon_library-devel/icons/intrigue


Icons Used:
go-next.png
go-previous.png


GNOME Icon Theme 2.26.0 (gnome)
link: http://art.gnome.org/
license: GPLv2
formats: svg, png
subdirectories: open_icon_library-devel/icons/gnome
open_icon_library-devel/icons_by_subject/gnome

Icons Used:
system-help-2.svg

app-install-data (app-install)
link: http://packages.debian.org/lenny/app-install-data
licenses: Various, see docs/AUTHORS_app-install
format: xpm, svg, png
subdirectory: open_icon_library-devel/icons/app-install

Icons Used:
epiphany-bookmarks.svg

Wikimedia Commons
link: http://commons.wikimedia.org/wiki/Main_Page
license: CC, GPL, PD, MIT, BSD (in seperate directories)
format: svg, png
subdirectory: open-icon-library-devel/icons/wiki_commons_bsd
subdirectory: open-icon-library-devel/icons/wiki_commons_mit
subdirectory: open-icon-library-devel/icons/wiki_commons_cc
subdirectory: open-icon-library-devel/icons/wiki_commons_gpl
subdirectory: open-icon-library-devel/icons/wiki_commons_pd

Icons Used:
gnome-dictionary.svg

Crystal Clear (crystal_clear)
link: http://commons.wikimedia.org/wiki/Crystal_Clear
license: LGPL-2.1
formats: png
subdirectories: open_icon_library-devel/icons/crystal_clear
open_icon_library-devel/icons_by_subject/crystal_clear


Icons Used:
db_update.png