low="0" high="20000" default="10000"
convert="invert"/>
- <boolean id="decay" _label="Orbital Decay" arg-set="-decay"/>
- <boolean id="decay" _label="Object Trails" arg-set="-trail"/>
+ <boolean id="decay" _label="Orbital Decay" arg-unset="-no-decay"/>
+ <boolean id="decay" _label="Object Trails" arg-unset="-no-trail"/>
<number id="ncolors" type="slider" arg="-ncolors %"
_label="Number of Colors" _low-label="Two" _high-label="Many"
<_description>
This program draws a simple orbital simulation. If you turn on
-trails, it looks kind of like a cloud-chamber photograph. Written
-by Greg Bowering.
+trails, it looks kind of like a cloud-chamber photograph.
+
+Written by Greg Bowering; 1997.
</_description>
</screensaver>