<command arg="-root"/>
+ <video href="https://www.youtube.com/watch?v=QcJnc9EKJrI"/>
+
<hgroup>
<vgroup>
<number id="delay" type="slider" arg="-delay %"
A overlapping, translucent spiral patterns.
The tightness of their spirals fluctuates in and out.
-http://en.wikipedia.org/wiki/Moire_pattern
+https://en.wikipedia.org/wiki/Moire_pattern
Written by Jamie Zawinski; 2008.
</_description>