<number id="speed" type="slider" arg="-growth-delay %"
_label="Frame rate" _low-label="Low" _high-label="High"
low="0" high="100000" default="18000" convert="invert"/>
<number id="speed" type="slider" arg="-growth-delay %"
_label="Frame rate" _low-label="Low" _high-label="High"
low="0" high="100000" default="18000" convert="invert"/>