A gray X inside a circle
<div style="display:inline-block;padding:0 3px;background-color:#BDC"><a href="//commons.wikimedia.org/wiki/File:CloseWindow19x19.png" title="File:CloseWindow19x19.png"><b>Original: </b></a></div> <div style="display:inline-block;padding:3px 0;"><a href="//commons.wikimedia.org/wiki/User:Kaldari" title="User:Kaldari">Kaldari</a></div> <div style="display:inline-block;padding:0 3px;background-color:#CCF">Vector: </div> <div style="display:inline-block;"><a href="//commons.wikimedia.org/wiki/User:AntiCompositeNumber" title="User:AntiCompositeNumber">AntiCompositeNumber</a></div>
Manually traced from <a href="//commons.wikimedia.org/wiki/File:CloseWindow19x19.png" title="File:CloseWindow19x19.png">CloseWindow19x19.png</a>