From <a href="https://en.wikipedia.org/wiki/GNOME" class="extiw" title="w:GNOME">GNOME</a> version of <a href="//commons.wikimedia.org/wiki/Nuvola" class="mw-redirect" title="Nuvola">Nuvola</a>. May be included in the PNG version under <a href="//commons.wikimedia.org/wiki/Nuvola/apps" title="Nuvola/apps">Nuvola/apps</a>.
David Vignoni
LGPL
<a rel="nofollow" class="external free" href="http://ftp.gnome.org/pub/GNOME/sources/gnome-themes-extras/0.9/gnome-themes-extras-0.9.0.tar.gz">http://ftp.gnome.org/pub/GNOME/sources/gnome-themes-extras/0.9/gnome-themes-extras-0.9.0.tar.gz</a>