It's recolored from the anarchist flag <a href="//commons.wikimedia.org/wiki/File:Anarchist_flag.svg" title="File:Anarchist flag.svg">File:Anarchist_flag.svg</a>
<a href="https://en.wikipedia.org/wiki/User:Kharybdis" class="extiw" title="en:User:Kharybdis">Kharybdis</a> (<a href="https://en.wikipedia.org/wiki/User_talk:Kharybdis" class="extiw" title="en:User talk:Kharybdis">talk</a>) (<a href="https://en.wikipedia.org/wiki/Special:ListFiles/Kharybdis" class="extiw" title="en:Special:ListFiles/Kharybdis">Uploads</a>)
28 January 2008 (original upload date)
derived from <a href="https://en.wikipedia.org/wiki/Image:Anarchist_flag.svg" class="extiw" title="en:Image:Anarchist flag.svg">:Image:Anarchist_flag.svg</a>