<command arg="-root"/>
- <video href="http://www.youtube.com/watch?v=G1OLn4Mdk5Y"/>
+ <video href="https://www.youtube.com/watch?v=G1OLn4Mdk5Y"/>
<number id="iterations" type="slider" arg="-iterations %"
_label="Iterations" _low-label="Small" _high-label="Large"