<a href="https://en.wikipedia.org/wiki/ambigram" class="extiw" title="en:ambigram">Ambigram</a> <b>Yeah</b>, <a href="https://en.wikipedia.org/wiki/Tessellation" class="extiw" title="en:Tessellation">tessellation</a>, 180° rotational symmetry, gray and white.
<a href="//commons.wikimedia.org/wiki/User:Basile_Morin" title="User:Basile Morin">Basile Morin</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>