update

.github/guides/VISUALS.md

@@ -406,6 +406,9 @@ There are a few snowflake layers that can be used to accomplish niche goals, alo
 
 Floating layers will float "up" the chain of things they're being drawn onto, until they find a real layer. They'll then offset off of that.
 
+Adding `TOPDOWN_LAYER` (actual value `10000`) to another layer forces the appearance into topdown rendering, locally disabling [side map](#side_map-check-the-main-page-too).
+We can think of this as applying to planes, since we don't want it interlaying with other non topdown objects.
+
 This allows us to keep relative layer differences while not needing to make all sources static. Often very useful.
 
 ## Planes

_maps/RandomRuins/IceRuins/icemoon_surface_bughabitat.dmm

@@ -188,7 +188,7 @@
 /turf/open/floor/iron,
 /area/ruin/bughabitat)
 "sr" = (
-/obj/machinery/plumbing/growing_vat,
+/obj/machinery/vatgrower,
 /turf/open/floor/iron,
 /area/ruin/bughabitat)
 "st" = (
@@ -322,14 +322,10 @@
 /area/ruin/bughabitat)
 "Ku" = (
 /obj/structure/table,
-/obj/item/construction/plumbing/research,
 /turf/open/floor/plastic,
 /area/ruin/bughabitat)
 "Ly" = (
 /obj/structure/table,
-/obj/item/stack/ducts/fifty{
-	amount = 23
-	},
 /mob/living/basic/butterfly,
 /turf/open/floor/plastic,
 /area/ruin/bughabitat)