History: Open Source Icons

We need to get rid of some closed source and ugly icons and choose/create some consistent iconset for Admin panels and other icons.
For example, this icon:

(http://themes.tikiwiki.org/img/icons/help.gif)
It seems to be an icon taken from WindowsXP and converted to gif which brings licensing issue.

Preferred format should be indexed (max. 256 colors) or alpha transparent PNGs with background colour set to white (when alpha it renders with white background in MSIE, instead some ugly grey or black background). Also when PNG is in indexed palette of same colour amount it gives better compression results than traditional GIF.

Freely Available Iconsets (must be LGPL or compatible to be shipped with Tiki)

Crystal Clear by Everaldo

http://www.kde-look.org/content/show.php?content=25668

Icons for Tiki by G. Ferreira

http://tikiwiki.org/gferreira_IconsTikiwiki
License: Unknown

Nuvola by David Vignoni

http://www.kde-look.org/content/show.php?content=5358
License: LGPL

Tango Iconset

http://tango.freedesktop.org/Tango_Icon_Gallery
License: Creative Commons Attribution Share-Alike license

Mark James.

http://www.famfamfam.com/
License: ?

Monochrome Icons

http://www.kde-look.org/content/show.php?content=18317
License: LGPL

See Also

http://tikiwiki.org/tiki-directory_browse.php?parent=103
http://tikiwiki.org/tiki-index.php?page=IconReview

Resources

Icon Naming Specification

Icon set listings

http://linux.softpedia.com/get/Desktop-Environment/Icons/
http://www.maxpower.ca/free-icons/2006/03/05/
http://www.fiftyfoureleven.com/resources/icons
http://commons.wikimedia.org/wiki/Category:Icons_themes