Logo of <a href="https://en.wikipedia.org/wiki/nnn_(file_manager)" class="extiw" title="en:nnn (file manager)">nnn</a>. It shows the text "n³" on the silhouette of a Chess knight.
Léo Villeveygoux (leovilok)
BSD
<a rel="nofollow" class="external free" href="https://github.com/jarun/nnn/blob/1a78ad4afffed0970891d784348b50ac14ff68f7/misc/logo/logo.svg">https://github.com/jarun/nnn/blob/1a78ad4afffed0970891d784348b50ac14ff68f7/misc/logo/logo.svg</a>