- <vgroup>
- <boolean id="reflect" _label="Reflect" arg-set="-reflect"/>
- <boolean id="magnify" _label="Magnify" arg-set="-magnify"/>
- </vgroup>
- <vgroup>
- <boolean id="blackhole" _label="Black Hole" arg-set="-blackhole"/>
- <boolean id="vortex" _label="Vortex" arg-set="-vortex"/>
- </vgroup>
+ <boolean id="reflect" _label="Reflect" arg-set="-reflect"/>
+ <boolean id="magnify" _label="Magnify" arg-set="-magnify"/>
+ <boolean id="blackhole" _label="Black hole" arg-set="-blackhole"/>
+ <boolean id="vortex" _label="Vortex" arg-set="-vortex"/>
+ <boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>