Self made (by Geometry guy) based on <a href="https://en.wikipedia.org/wiki/File:Penrose-tiles-bump-and-color-coded.svg" class="extiw" title="en:File:Penrose-tiles-bump-and-color-coded.svg">File:Penrose-tiles-bump-and-color-coded.svg</a> (freely licensed)
<a href="https://en.wikipedia.org/wiki/User:Geometry_guy" class="extiw" title="wikipedia:User:Geometry guy">Geometry guy</a> at <a href="https://en.wikipedia.org/wiki/" class="extiw" title="wikipedia:">English Wikipedia</a>
CC BY-SA 3.0
own (see file description)