anchor.diff:  	var/pressure = air_contents.return_pressure()
   	if(pressure < 10)
   		update |= EMPTY
  -	else if(pressure < ONE_ATMOSPHERE)
  +	else if(pressure < 5 * ONE_ATMOSPHERE)
   		update |= LOW
  -	else if(pressure < 15 * ONE_ATMOSPHERE)
  +	else if(pressure < 10 * ONE_ATMOSPHERE)
  +		update |= MEDIUM
  +	else if(pressure < 40 * ONE_ATMOSPHERE)
   		update |= FULL
   	else
   		update |= DANGER
  
positive.code: #undef CONNECTED
  #undef EMPTY
  #undef LOW
  #undef FULL
  #undef DANGER
  
  
negative.code: #define CONNECTED 2
  #define EMPTY 4
  #define LOW 8
  #define MEDIUM 16
  #define FULL 32
  #define DANGER 64
  /obj/machinery/portable_atmospherics/canister/update_icon()
  	if(stat & BROKEN)
  		cut_overlays()
  