_label="Speed" _low-label="Slow" _high-label="Fast"
low="0" high="80000" default="50000"
convert="invert"/>
<number id="scale" type="spinbutton" arg="-scale %"
_label="Speed" _low-label="Slow" _high-label="Fast"
low="0" high="80000" default="50000"
convert="invert"/>
<number id="scale" type="spinbutton" arg="-scale %"