The icons mute_off.png, mute_on.png, muted_by_solo.png,
solo_off.png, solo_on.png are copyrighted by Grigor Iliev.
The icon app-icon.png is copyrighted by Christian Schoenebeck.
The icons Back16.gif, Copy16.gif, Delete16.gif, Down16.gif, Edit16.gif,
Export16.gif, Import16.gif, New16.gif, Properties16.gif, Refresh16.gif,
Refresh24.gif, Up16.gif are copyrighted by Sun Microsystems (see SUN-LICENSE).

Icons under LGPL license:
db32.png

Icons under Creative Commons Attribution-ShareAlike 2.5 license:
new16.png
Open32.png
reload22.png
reload32.png
Save16.png
Save32.png

