<command arg="-root"/>
+ <video href="https://www.youtube.com/watch?v=TGQRLAhDLv0"/>
+
<number id="delay" type="slider" arg="-delay %"
_label="Frame rate" _low-label="Low" _high-label="High"
low="0" high="100000" default="20000"
<_description>
The recursive Sierpinski tetrahedron fractal.
-http://en.wikipedia.org/wiki/Sierpinski_triangle#Analogs_in_higher_dimension
+https://en.wikipedia.org/wiki/Sierpinski_triangle#Analogs_in_higher_dimension
Written by Jamie Zawinski and Tim Robinson; 1999.
</_description>