anchor.diff:  		var/obj/item/clothing/head/H = helmet_by_suit[A]
   		if(H)
   			UnregisterSignal(H, list(COMSIG_ATOM_UPDATE_OVERLAYS, COMSIG_ITEM_WORN_OVERLAYS, COMSIG_PARENT_QDELETING))
  -			LAZYREMOVE(helmet_by_suit, A)
  -			LAZYREMOVE(suit_by_helmet, H)
  +			helmet_by_suit -= A
  +			suit_by_helmet -= H
   			colors_by_atom -= H
   			if(!QDELETED(H))
   				H.update_icon() //removing the overlays
  
positive.code: 
  /datum/element/polychromic/proc/unregister_helmet(atom/source)
  	var/obj/item/clothing/suit/S = suit_by_helmet[source]
  	LAZYREMOVE(suit_by_helmet, source)
  	LAZYREMOVE(helmet_by_suit, S)
  	colors_by_atom -= source
  
  /datum/action/polychromic
  
negative.code: 	var/list/actions_by_atom = list()
  	var/poly_flags
  	var/static/list/suits_with_helmet_typecache = typecacheof(list(/obj/item/clothing/suit/hooded, /obj/item/clothing/suit/space/hardsuit))
  	var/list/helmet_by_suit = list() //because poly winter coats exist.
  	var/list/suit_by_helmet = list() //Idem.
  
  /datum/element/polychromic/Attach(datum/target, list/colors, states, _flags = POLYCHROMIC_ACTION|POLYCHROMIC_NO_HELD, _icon, _worn, list/names = list("Primary", "Secondary", "Tertiary", "Quaternary", "Quinary", "Senary"))
  	. = ..()
  