Merge pull request #37818 from AutomaticFrenzy/patch/missing-icons

Fix some missing icons

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

@@ -1,7 +1,7 @@
 /obj/effect/decal/cleanable
 	gender = PLURAL
 	layer = ABOVE_NORMAL_TURF_LAYER
-	var/list/random_icon_states = list()
+	var/list/random_icon_states = null
 	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?

code/game/objects/effects/forcefields.dm

@@ -27,7 +27,7 @@
 ///////////Mimewalls///////////
 
 /obj/effect/forcefield/mime
-	icon_state = "empty"
+	icon_state = "nothing"
 	name = "invisible wall"
 	desc = "You have a bad feeling about this."