Porting updates related to material datums. (#12317)

* Porting updates related to material datums.

* art_type

* oh oh

code/game/objects/effects/decals/cleanable.dm

@@ -5,6 +5,7 @@
 	var/blood_state = "" //I'm sorry but cleanable/blood code is ass, and so is blood_DNA
 	var/bloodiness = 0 //0-100, amount of blood in this decal, used for making footprints and affecting the alpha of bloody footprints
 	var/mergeable_decal = TRUE //when two of these are on a same tile or do we need to merge them into just one?
+	var/beauty = 0
 
 /obj/effect/decal/cleanable/Initialize(mapload, list/datum/disease/diseases)
 	. = ..()
@@ -26,6 +27,8 @@
 		if(LAZYLEN(diseases_to_add))
 			AddComponent(/datum/component/infective, diseases_to_add)
 
+	addtimer(CALLBACK(src, /datum.proc/_AddElement, list(/datum/element/beauty, beauty)), 0)
+
 /obj/effect/decal/cleanable/proc/replace_decal(obj/effect/decal/cleanable/C) // Returns true if we should give up in favor of the pre-existing decal
 	if(mergeable_decal)
 		qdel(C)