<boolean id="wander" _label="Wander" arg-unset="-no-wander"/>
<boolean id="spin" _label="Spin" arg-unset="-no-spin"/>
<boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>
<boolean id="wander" _label="Wander" arg-unset="-no-wander"/>
<boolean id="spin" _label="Spin" arg-unset="-no-spin"/>
<boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>