+ <number id="decay" type="slider" arg="-decay %"
+ _label="Explosion decay" _low-label="Linger" _high-label="Pop!"
+ low="0.0" high="1.0" default="0.07"/>
+
+ <number id="momentum" type="slider" arg="-momentum %"
+ _label="Explosion momentum" _low-label="None" _high-label="Full"
+ low="0.0" high="1.0" default="0.6"/>
+
+ <boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>