Adds new canister sprites (#32219)

* Gas rename

* and this

* and the comments

* nonitrous

* reverts ren

* really reverts it

* reverts some whitespace

* Update airalarm.dm

* Update canister.dm

* come on travis recompile

code/modules/atmospherics/machinery/portable/canister.dm

@@ -41,9 +41,14 @@
 		"co2" = /obj/machinery/portable_atmospherics/canister/carbon_dioxide,
 		"plasma" = /obj/machinery/portable_atmospherics/canister/toxins,
 		"n2o" = /obj/machinery/portable_atmospherics/canister/nitrous_oxide,
+		"no2" = /obj/machinery/portable_atmospherics/canister/nitryl,
 		"bz" = /obj/machinery/portable_atmospherics/canister/bz,
 		"air" = /obj/machinery/portable_atmospherics/canister/air,
 		"water vapor" = /obj/machinery/portable_atmospherics/canister/water_vapor,
+		"tritium" = /obj/machinery/portable_atmospherics/canister/tritium,
+		"hyper-noblium" = /obj/machinery/portable_atmospherics/canister/nob,
+		"stimulum" = /obj/machinery/portable_atmospherics/canister/stimulum,
+		"pluoxium" = /obj/machinery/portable_atmospherics/canister/pluoxium,
 		"caution" = /obj/machinery/portable_atmospherics/canister,
 	)
 
@@ -98,26 +103,31 @@
 /obj/machinery/portable_atmospherics/canister/tritium
 	name = "tritium canister"
 	desc = "Tritium. Inhalation might cause irradiation."
+	icon_state = "green"
 	gas_type = /datum/gas/tritium
 
 /obj/machinery/portable_atmospherics/canister/nob
 	name = "hyper-noblium canister"
 	desc = "Hyper-Noblium. More noble than all other gases."
+	icon_state = "freon"
 	gas_type = /datum/gas/hypernoblium
 
 /obj/machinery/portable_atmospherics/canister/nitryl
 	name = "nitryl canister"
 	desc = "Nitryl gas. Feels great 'til the acid eats your lungs."
+	icon_state = "brown"
 	gas_type = /datum/gas/nitryl
 
 /obj/machinery/portable_atmospherics/canister/stimulum
 	name = "stimulum canister"
 	desc = "Stimulum. High energy gas, high energy people."
+	icon_state = "darkpurple"
 	gas_type = /datum/gas/stimulum
 
 /obj/machinery/portable_atmospherics/canister/pluoxium
 	name = "pluoxium canister"
 	desc = "Pluoxium. Like oxygen, but more bang for your buck."
+	icon_state = "darkblue"
 	gas_type = /datum/gas/pluoxium
 
 /obj/machinery/portable_atmospherics/canister/water_vapor
@@ -127,7 +137,6 @@
 	gas_type = /datum/gas/water_vapor
 	filled = 1
 
-
 /obj/machinery/portable_atmospherics/canister/proc/get_time_left()
 	if(timing)
 		. = round(max(0, valve_timer - world.time) / 10, 1)