anchor.diff:  	dangerous = TRUE
   	gas_overlay = "halon"
   	moles_visible = MOLES_GAS_VISIBLE
  -	rarity = 100
  +	rarity = 300
   
   /datum/gas/hexane
   	id = "hexane"
  
positive.code: 	dangerous = TRUE
  	gas_overlay = "healium"
  	moles_visible = MOLES_GAS_VISIBLE
  	rarity = 100
  
  /datum/gas/proto_nitrate
  	id = "proto_nitrate"
  
negative.code: 	dangerous = TRUE
  	gas_overlay = "proto_nitrate"
  	moles_visible = MOLES_GAS_VISIBLE
  	rarity = 200
  
  /datum/gas/zauker
  	id = "zauker"
  