/obj/item/stack/material/plastic name = MAT_PLASTIC icon_state = "sheet-plastic" default_type = MAT_PLASTIC no_variants = FALSE /obj/item/stack/material/cardboard name = MAT_CARDBOARD icon_state = "sheet-card" default_type = MAT_CARDBOARD no_variants = FALSE pass_color = TRUE strict_color_stacking = TRUE drop_sound = 'sound/items/drop/cardboardbox.ogg' pickup_sound = 'sound/items/pickup/cardboardbox.ogg'