Port TG updating appearances (#17943)

* Get pants that match or else you gonna look silly yo

* Posters

* Fix other hud elements

* Rereviewed

* Update shotglass.dm

* Fix for new merged PRs

* Typo

* Coming across other stuff

* Update theblob.dm

* No takebacksies

* smh i forget to leave a comment

* Updated for the detgun and cards

* Should have rerun langserver again

* No longer plastic, more in scope

* Damn you bluespace

* Reverting turret logic, out of scope at this point

* Tweak that part

* Went over energy guns again, and fixed UI White's sprite sheet

* Welding masks, glasses, and JUSTICE

* Update portable_atmospherics.dm

* Cleaning up, clearing things up

* Review and suggestions

* Update valve.dm

* More tweaks

* Missing character

* Not distinct lightmasks, so they can be overlays

* Update generator.dm

* Add parameter so holodeck doesn't try to make a perfect copy

* Update unsorted.dm

* Spiders

* Better fix for spiders, fix vamps too

* Ghosts

* Update telekinesis.dm

* Cleaning up old procs

* It's set up to not copy datums... Unless they're in a list

* Donuts, duct tape, and detgun. D3VR coming to Early Access

* Update procs that interact with doors so they call update_state instead

* Forgot one spot, and actually might as well just force lock

* Cleaning up other things... Sigh, and kitty ears

* oops

* Getting used to how it works

* blinds

* Going back to the suit obscuring thing, so it doesn't update all the time

* Missed that from merging master

* I made this PR and forgot about it

* Fix runtimes in cards

* Make things a bit more unified

* Update update_icons.dm

* yarn, really?

* Update library_equipment.dm

* Update shieldgen.dm

* Every time Charlie merges something, I go back and see if I can improve things further

* what's this? more?

* Update misc_special.dm

* wow, paper

* Review

* More reviews

* To be sure, seems like being broken messed something sometimes

* Brought airlocks closer to how TG works to iron out some stuff

* Pizza and morgue

* Doesn't seem to hurt, tried with holodeck

* Revert "Doesn't seem to hurt, tried with holodeck"

This reverts commit 158529302b.

* Icon conflict

* Fix organ damage

* Don't ask how. Why. It's like that on prod too.

* Cutting down on things and updating from TG.

* More flexible. Just in case the thing you stuck it on didn't destroy.

* Hydro was one the things I touched earlier on, better rework it

* Reviews

* Cleaning up further, also bri'ish

* Undo a change I did, and switch over to a more recent implementation

* Update biogenerator.dm

* Rolling back to old airlocks, but with new duct taped note

* Functionally the same. I'd just rather not have the smoothing happen there

* Went over APCs again

* Fix welding helmet names in species files

* Update airlock.dm

* Update persistent_overlay.dm

* Oh, topic

code/modules/customitems/item_defines.dm

@@ -78,15 +78,12 @@
 		used = TRUE
 		update_icon()
 
-/obj/item/fluff/tattoo_gun/update_icon()
-	..()
-
-	overlays.Cut()
-
+/obj/item/fluff/tattoo_gun/update_overlays()
+	. = ..()
 	if(!used)
 		var/image/ink = image(src.icon, src, "ink_overlay")
 		ink.icon += rgb(tattoo_r, tattoo_g, tattoo_b, 190)
-		overlays += ink
+		. += ink
 
 /obj/item/fluff/tattoo_gun/New()
 	..()
@@ -1108,7 +1105,7 @@
 	icon_state = "elishirt"
 	item_state = "elishirt"
 	item_color = "elishirt"
-	displays_id = 0
+	displays_id = FALSE
 
 /obj/item/clothing/under/fluff/jay_turtleneck // Jayfeather: Jay Wingler
 	name = "Mar's Pattern Custom Turtleneck"
@@ -1117,7 +1114,7 @@
 	icon_state = "jaywingler"
 	item_state = "jaywingler"
 	item_color = "jaywingler"
-	displays_id = 0
+	displays_id = FALSE
 
 /obj/item/clothing/under/psysuit/fluff/isaca_sirius_1 // Xilia: Isaca Sirius
 	name = "Isaca's suit"
@@ -1131,7 +1128,7 @@
 	item_state = "jane_sid_suit"
 	item_color = "jane_sid_suit"
 	has_sensor = 2
-	sensor_mode = 3
+	sensor_mode = SENSOR_COORDS
 
 /obj/item/clothing/under/fluff/jane_sidsuit/verb/toggle_zipper()
 	set name = "Toggle Jumpsuit Zipper"
@@ -1159,7 +1156,7 @@
 	icon_state = "roman"
 	item_state = "maximus_armor"
 	item_color = "maximus_armor"
-	displays_id = 0
+	displays_id = FALSE
 	strip_delay = 100
 
 /obj/item/clothing/under/fluff/aegis //PlagueWalker: A.E.G.I.S.
@@ -1171,7 +1168,7 @@
 	icon_state = "aegisuniform"
 	item_state = "aegisuniform"
 	item_color = "aegisuniform"
-	displays_id = 0
+	displays_id = FALSE
 
 /obj/item/clothing/under/fluff/elo_turtleneck // vforcebomber: E.L.O.
 	name = "E.L.O's Turtleneck"
@@ -1666,7 +1663,7 @@
 	icon = 'icons/obj/custom_items.dmi'
 	fluff_material = TRUE
 
-/obj/item/clothing/gloves/ring/fluff/update_icon()
+/obj/item/clothing/gloves/ring/fluff/update_icon_state()
 	return
 
 /obj/item/clothing/gloves/ring/fluff/attackby(obj/item/I as obj, mob/user as mob, params)