anchor.diff:  	. = ..()
   	plane = initial(plane)
   
  -GLOBAL_VAR_INIT(cryo_overlay_cover_on, mutable_appearance('icons/obj/cryogenics.dmi', "cover-on", layer = ABOVE_WINDOW_LAYER + 0.02))
  -GLOBAL_VAR_INIT(cryo_overlay_cover_off, mutable_appearance('icons/obj/cryogenics.dmi', "cover-off", layer = ABOVE_WINDOW_LAYER + 0.02))
  +GLOBAL_VAR_INIT(cryo_overlay_cover_on, mutable_appearance('icons/obj/cryogenics.dmi', "cover-on", layer = MOB_LAYER + 0.02))
  +GLOBAL_VAR_INIT(cryo_overlay_cover_off, mutable_appearance('icons/obj/cryogenics.dmi', "cover-off", layer = MOB_LAYER + 0.02))
   
   /obj/machinery/atmospherics/components/unary/cryo_cell/update_overlays()
   	. = ..()
  
positive.code: 	// Must be tall, otherwise the filter will consider this as a 32x32 tile
  	// and will crop the head off.
  	icon_state = "mask_bg"
  	layer = ABOVE_WINDOW_LAYER + 0.01
  	mouse_opacity = MOUSE_OPACITY_TRANSPARENT
  	pixel_y = 22
  	appearance_flags = KEEP_TOGETHER
  
negative.code: 	density = TRUE
  	max_integrity = 350
  	armor = list(MELEE = 0, BULLET = 0, LASER = 0, ENERGY = 100, BOMB = 0, BIO = 100, RAD = 100, FIRE = 30, ACID = 30)
  	layer = MOB_LAYER
  	state_open = FALSE
  	circuit = /obj/item/circuitboard/machine/cryo_tube
  	pipe_flags = PIPING_ONE_PER_TURF | PIPING_DEFAULT_LAYER_ONLY
  