<command arg="-root"/>
+ <video href="https://www.youtube.com/watch?v=atlkrWkbYHk"/>
+
<hgroup>
<vgroup>
<number id="delay" type="slider" arg="-delay %"
As reported by News of the Weird #491, 4-Jul-1997.
-http://en.wikipedia.org/wiki/Penrose_tiling
-http://en.wikipedia.org/wiki/Tessellation
+https://en.wikipedia.org/wiki/Penrose_tiling
+https://en.wikipedia.org/wiki/Tessellation
Written by Timo Korvola; 1997.
</_description>