This is Tango theme for Kadu instant messenger ( http://www.kadu.net/ )
Theme maintainer: Michał Rudowicz ( blotko AT gmail DOT com )

If you have any questions ask on http://www.kadu.net/forum/

The Tango base icon theme is licensed under the Creative Commons Attribution Share-Alike license
( http://creativecommons.org/licenses/by-sa/2.5/ )

Some icons are taken from Silk icon theme for Kadu.
This work is licensed under a Creative Commons Attribution 2.5 License. (http://creativecommons.org/licenses/by/2.5/)

help-about-kadu_big.png, help-about-kadu.png - official Kadu logo