_label="Speed" _low-label="Fast" _high-label="Slow"
low="0" high="50000" default="30000"/>
<number id="boxsize" type="spinbutton" arg="-boxsize %"
_label="Speed" _low-label="Fast" _high-label="Slow"
low="0" high="50000" default="30000"/>
<number id="boxsize" type="spinbutton" arg="-boxsize %"