Good idea, tbh.

code/game/objects/structures/ghost_role_spawners.dm

@@ -624,4 +624,19 @@
 	uniform = /obj/item/clothing/under/color/random
 	shoes = /obj/item/clothing/shoes/sneakers/black
 	id = /obj/item/card/id
+
+
+/datum/outfit/ghostcafe/pre_equip(mob/living/carbon/human/H, visualsOnly = FALSE, client/preference_source)
+	..()
+	var/suited = !preference_source || preference_source.prefs.jumpsuit_style == PREF_SUIT
+	if (CONFIG_GET(flag/grey_assistants))
+		if(suited)
+			uniform = /obj/item/clothing/under/color/grey
+		else
+			uniform = /obj/item/clothing/under/skirt/color/grey
+	else
+		if(suited)
+			uniform = /obj/item/clothing/under/color/random
+		else
+			uniform = /obj/item/clothing/under/skirt/color/random