Help with Auras (TokenMod)

I'm using TokenMod and a basic 'target' token to set up persistent AOE indication for maps in my game. For the most part the macro does what I need it to do, however it doesn't change the aura shape. Can anyone advise where I'm messing up? The macro code: !token-mod --?{Show to players|on|off} showplayers_aura1 --set aura1_?{Shape|Circle,circle|Square,square}  --set aura1_radius#?{Aura Radius}  --set aura1_color#?{Color|Red,ff0000|Green,00ff00|Blue,00ffff|Yellow,ffff00|White,ffffff} --ids @{target|token_id}

You just need to set the 'aura1_square' parameter to be "on" or "off". Also,  you don't need to use multiple --set arguments.   !token-mod --?{Show to players|on|off} showplayers_aura1 --set aura1_square|?{Shape|Circle,off|Square,on}  aura1_radius#?{Aura Radius}  aura1_color#?{Color|Red,ff0000|Green,00ff00|Blue,00ffff|Yellow,ffff00|White,ffffff} --ids @{target|token_id}

Sorry, not sure I fully understand. To clarify, setting aura1_square as 'off' will produce a circle? That's really counterintuitive if so...

Correct.  'aura1_square' and 'aura2_square' are the  token object property names that Roll20 has for Mod scripts. They are a toggle - either 'true' or 'false'.  True means the aura is a square and false means that the aura is a circle.