<number id="maxage" type="slider" arg="-max-age %"
_label="Max Age" _low-label="Young" _high-label="Old"
- low="2" high="200" default="64"/>
+ low="2" high="255" default="64"/>
<number id="density" type="slider" arg="-initial-density %"
_label="Initial Density" _low-label="Low" _high-label="High"