Holofans, forcefield gens, temperature block

code/game/objects/structures/holosign.dm

@@ -69,7 +69,7 @@
 /obj/structure/holosign/barrier/atmos
 	name = "holo firelock"
 	desc = "A holographic barrier resembling a firelock. Though it does not prevent solid objects from passing through, gas is kept out."
-	icon_state = "holo_firelock"
+	icon_state = "holo_fan"
 	density = FALSE
 	layer = ABOVE_MOB_LAYER
 	anchored = TRUE
@@ -81,6 +81,9 @@
 	. = ..()
 	air_update_turf(TRUE)
 
+/obj/structure/holosign/barrier/atmos/blocksTemperature()
+	return TRUE
+
 /obj/structure/holosign/barrier/cyborg
 	name = "Energy Field"
 	desc = "A fragile energy field that blocks movement. Excels at blocking lethal projectiles."