diff --git a/code/_onclick/hud/action_button.dm b/code/_onclick/hud/action_button.dm
index d2508b3e8e..858b8dbd06 100644
--- a/code/_onclick/hud/action_button.dm
+++ b/code/_onclick/hud/action_button.dm
@@ -113,7 +113,7 @@
 		name = "Show Buttons"
 	else
 		name = "Hide Buttons"
-	UpdateIcon()
+	update_icon()
 	usr.update_action_buttons()
 
 /obj/screen/movable/action_button/hide_toggle/AltClick(mob/user)
@@ -135,9 +135,9 @@
 	hide_icon = settings["toggle_icon"]
 	hide_state = settings["toggle_hide"]
 	show_state = settings["toggle_show"]
-	UpdateIcon()
+	update_icon()
 
-/obj/screen/movable/action_button/hide_toggle/proc/UpdateIcon()
+/obj/screen/movable/action_button/hide_toggle/update_icon()
 	cut_overlays()
 	add_overlay(mutable_appearance(hide_icon, hidden ? show_state : hide_state))
 
diff --git a/code/game/area/areas.dm b/code/game/area/areas.dm
index 612c3cba42..f5e285a5c2 100644
--- a/code/game/area/areas.dm
+++ b/code/game/area/areas.dm
@@ -327,7 +327,7 @@ GLOBAL_LIST_EMPTY(teleportlocs)
 	for(var/obj/machinery/light/L in src)
 		L.update()
 
-/area/proc/updateicon()
+/area/proc/update_icon()
 	var/weather_icon
 	for(var/V in SSweather.processing)
 		var/datum/weather/W = V
@@ -337,7 +337,7 @@ GLOBAL_LIST_EMPTY(teleportlocs)
 	if(!weather_icon)
 		icon_state = null
 
-/area/space/updateicon()
+/area/space/update_icon()
 	icon_state = null
 
 /*
@@ -370,7 +370,7 @@ GLOBAL_LIST_EMPTY(teleportlocs)
 /area/proc/power_change()
 	for(var/obj/machinery/M in src)	// for each machine in the area
 		M.power_change()				// reverify power status (to update icons etc.)
-	updateicon()
+	update_icon()
 
 /area/proc/usage(chan)
 	var/used = 0
diff --git a/code/game/machinery/Beacon.dm b/code/game/machinery/Beacon.dm
index 3d0931d534..c98795c90b 100644
--- a/code/game/machinery/Beacon.dm
+++ b/code/game/machinery/Beacon.dm
@@ -25,10 +25,10 @@
 // update the invisibility and icon
 /obj/machinery/bluespace_beacon/hide(intact)
 	invisibility = intact ? INVISIBILITY_MAXIMUM : 0
-	updateicon()
+	update_icon()
 
 // update the icon_state
-/obj/machinery/bluespace_beacon/proc/updateicon()
+/obj/machinery/bluespace_beacon/update_icon()
 	var/state="floor_beacon"
 
 	if(invisibility)
@@ -45,4 +45,4 @@
 	else if (Beacon.loc != loc)
 		Beacon.forceMove(loc)
 
-	updateicon()
+	update_icon()
diff --git a/code/game/machinery/cell_charger.dm b/code/game/machinery/cell_charger.dm
index 1839e44e3b..1c0635fd3d 100644
--- a/code/game/machinery/cell_charger.dm
+++ b/code/game/machinery/cell_charger.dm
@@ -13,7 +13,7 @@
 	var/chargelevel = -1
 	var/charge_rate = 500
 
-/obj/machinery/cell_charger/proc/updateicon()
+/obj/machinery/cell_charger/update_icon()
 	cut_overlays()
 	if(charging)
 		add_overlay(image(charging.icon, charging.icon_state))
@@ -53,7 +53,7 @@
 			charging = W
 			user.visible_message("[user] inserts a cell into [src].", "<span class='notice'>You insert a cell into [src].</span>")
 			chargelevel = -1
-			updateicon()
+			update_icon()
 	else
 		if(!charging && default_deconstruction_screwdriver(user, icon_state, icon_state, W))
 			return
@@ -76,7 +76,7 @@
 	charging.update_icon()
 	charging = null
 	chargelevel = -1
-	updateicon()
+	update_icon()
 
 /obj/machinery/cell_charger/attack_hand(mob/user)
 	. = ..()
@@ -127,4 +127,4 @@
 	use_power(charge_rate)
 	charging.give(charge_rate)	//this is 2558, efficient batteries exist
 
-	updateicon()
+	update_icon()
diff --git a/code/game/machinery/lightswitch.dm b/code/game/machinery/lightswitch.dm
index 694df02eb5..2a4b903906 100644
--- a/code/game/machinery/lightswitch.dm
+++ b/code/game/machinery/lightswitch.dm
@@ -21,9 +21,9 @@
 		name = "light switch ([area.name])"
 
 	on = area.lightswitch
-	updateicon()
+	update_icon()
 
-/obj/machinery/light_switch/proc/updateicon()
+/obj/machinery/light_switch/update_icon()
 	if(stat & NOPOWER)
 		icon_state = "light-p"
 	else
@@ -41,11 +41,11 @@
 	on = !on
 
 	area.lightswitch = on
-	area.updateicon()
+	area.update_icon()
 
 	for(var/obj/machinery/light_switch/L in area)
 		L.on = on
-		L.updateicon()
+		L.update_icon()
 
 	area.power_change()
 
@@ -57,7 +57,7 @@
 		else
 			stat |= NOPOWER
 
-		updateicon()
+		update_icon()
 
 /obj/machinery/light_switch/emp_act(severity)
 	. = ..()
diff --git a/code/game/machinery/magnet.dm b/code/game/machinery/magnet.dm
index 094db5a676..370621e0c8 100644
--- a/code/game/machinery/magnet.dm
+++ b/code/game/machinery/magnet.dm
@@ -46,10 +46,10 @@
 // update the invisibility and icon
 /obj/machinery/magnetic_module/hide(intact)
 	invisibility = intact ? INVISIBILITY_MAXIMUM : 0
-	updateicon()
+	update_icon()
 
 // update the icon_state
-/obj/machinery/magnetic_module/proc/updateicon()
+/obj/machinery/magnetic_module/update_icon()
 	var/state="floor_magnet"
 	var/onstate=""
 	if(!on)
@@ -161,7 +161,7 @@
 	else
 		use_power = NO_POWER_USE
 
-	updateicon()
+	update_icon()
 
 
 /obj/machinery/magnetic_module/proc/magnetic_process() // proc that actually does the magneting
diff --git a/code/game/machinery/navbeacon.dm b/code/game/machinery/navbeacon.dm
index d64ae75e2c..0f57bea656 100644
--- a/code/game/machinery/navbeacon.dm
+++ b/code/game/machinery/navbeacon.dm
@@ -72,10 +72,10 @@
 // hide the object if turf is intact
 /obj/machinery/navbeacon/hide(intact)
 	invisibility = intact ? INVISIBILITY_MAXIMUM : 0
-	updateicon()
+	update_icon()
 
 // update the icon_state
-/obj/machinery/navbeacon/proc/updateicon()
+/obj/machinery/navbeacon/update_icon()
 	var/state="navbeacon[open]"
 
 	if(invisibility)
@@ -94,7 +94,7 @@
 
 		user.visible_message("[user] [open ? "opens" : "closes"] the beacon's cover.", "<span class='notice'>You [open ? "open" : "close"] the beacon's cover.</span>")
 
-		updateicon()
+		update_icon()
 
 	else if (istype(I, /obj/item/card/id)||istype(I, /obj/item/pda))
 		if(open)
diff --git a/code/game/objects/items/pneumaticCannon.dm b/code/game/objects/items/pneumaticCannon.dm
index 72d27ae544..e63b4d7a3a 100644
--- a/code/game/objects/items/pneumaticCannon.dm
+++ b/code/game/objects/items/pneumaticCannon.dm
@@ -213,7 +213,7 @@
 		loadedWeightClass -= I.w_class
 	else if (A == tank)
 		tank = null
-		update_icons()
+		update_icon()
 
 /obj/item/pneumatic_cannon/ghetto //Obtainable by improvised methods; more gas per use, less capacity, but smaller
 	name = "improvised pneumatic cannon"
@@ -239,14 +239,13 @@
 			return
 		to_chat(user, "<span class='notice'>You hook \the [thetank] up to \the [src].</span>")
 		tank = thetank
-	update_icons()
+	update_icon()
 
-/obj/item/pneumatic_cannon/proc/update_icons()
+/obj/item/pneumatic_cannon/update_icon()
 	cut_overlays()
 	if(!tank)
 		return
 	add_overlay(tank.icon_state)
-	update_icon()
 
 /obj/item/pneumatic_cannon/proc/fill_with_type(type, amount)
 	if(!ispath(type, /obj) && !ispath(type, /mob))
diff --git a/code/game/objects/items/robot/robot_parts.dm b/code/game/objects/items/robot/robot_parts.dm
index 95110692c9..ab8030c9c2 100644
--- a/code/game/objects/items/robot/robot_parts.dm
+++ b/code/game/objects/items/robot/robot_parts.dm
@@ -24,7 +24,7 @@
 
 /obj/item/robot_suit/New()
 	..()
-	updateicon()
+	update_icon()
 
 /obj/item/robot_suit/prebuilt/New()
 	l_arm = new(src)
@@ -39,7 +39,7 @@
 	chest.cell = new /obj/item/stock_parts/cell/high/plus(chest)
 	..()
 
-/obj/item/robot_suit/proc/updateicon()
+/obj/item/robot_suit/update_icon()
 	cut_overlays()
 	if(l_arm)
 		add_overlay("[l_arm.icon_state]+o")
@@ -96,7 +96,7 @@
 			to_chat(user, "<span class='notice'>You disassemble the cyborg shell.</span>")
 	else
 		to_chat(user, "<span class='notice'>There is nothing to remove from the endoskeleton.</span>")
-	updateicon()
+	update_icon()
 
 /obj/item/robot_suit/proc/put_in_hand_or_drop(mob/living/user, obj/item/I) //normal put_in_hands() drops the item ontop of the player, this drops it at the suit's loc
 	if(!user.put_in_hands(I))
@@ -160,7 +160,7 @@
 		W.icon_state = initial(W.icon_state)
 		W.cut_overlays()
 		src.l_leg = W
-		src.updateicon()
+		update_icon()
 
 	else if(istype(W, /obj/item/bodypart/r_leg/robot))
 		if(src.r_leg)
@@ -170,7 +170,7 @@
 		W.icon_state = initial(W.icon_state)
 		W.cut_overlays()
 		src.r_leg = W
-		src.updateicon()
+		update_icon()
 
 	else if(istype(W, /obj/item/bodypart/l_arm/robot))
 		if(src.l_arm)
@@ -180,7 +180,7 @@
 		W.icon_state = initial(W.icon_state)
 		W.cut_overlays()
 		src.l_arm = W
-		src.updateicon()
+		update_icon()
 
 	else if(istype(W, /obj/item/bodypart/r_arm/robot))
 		if(src.r_arm)
@@ -190,7 +190,7 @@
 		W.icon_state = initial(W.icon_state)//in case it is a dismembered robotic limb
 		W.cut_overlays()
 		src.r_arm = W
-		src.updateicon()
+		update_icon()
 
 	else if(istype(W, /obj/item/bodypart/chest/robot))
 		var/obj/item/bodypart/chest/robot/CH = W
@@ -202,7 +202,7 @@
 			CH.icon_state = initial(CH.icon_state) //in case it is a dismembered robotic limb
 			CH.cut_overlays()
 			src.chest = CH
-			src.updateicon()
+			update_icon()
 		else if(!CH.wired)
 			to_chat(user, "<span class='warning'>You need to attach wires to it first!</span>")
 		else
@@ -222,7 +222,7 @@
 			HD.icon_state = initial(HD.icon_state)//in case it is a dismembered robotic limb
 			HD.cut_overlays()
 			src.head = HD
-			src.updateicon()
+			update_icon()
 		else
 			to_chat(user, "<span class='warning'>You need to attach a flash to it first!</span>")
 
diff --git a/code/game/objects/structures/divine.dm b/code/game/objects/structures/divine.dm
index 5fd480f6fd..b8137d831b 100644
--- a/code/game/objects/structures/divine.dm
+++ b/code/game/objects/structures/divine.dm
@@ -40,11 +40,11 @@
 	last_process = world.time
 	to_chat(user, "<span class='notice'>The water feels warm and soothing as you touch it. The fountain immediately dries up shortly afterwards.</span>")
 	user.reagents.add_reagent("godblood",20)
-	update_icons()
-	addtimer(CALLBACK(src, .proc/update_icons), time_between_uses)
+	update_icon()
+	addtimer(CALLBACK(src, .proc/update_icon), time_between_uses)
 
 
-/obj/structure/healingfountain/proc/update_icons()
+/obj/structure/healingfountain/update_icon()
 	if(last_process + time_between_uses > world.time)
 		icon_state = "fountain"
 	else
diff --git a/code/modules/mob/living/silicon/robot/robot.dm b/code/modules/mob/living/silicon/robot/robot.dm
index 01edaba8ec..c5c2beb999 100644
--- a/code/modules/mob/living/silicon/robot/robot.dm
+++ b/code/modules/mob/living/silicon/robot/robot.dm
@@ -834,7 +834,7 @@
 		robot_suit.head.flash2.burn_out()
 		robot_suit.head.flash2 = null
 		robot_suit.head = null
-		robot_suit.updateicon()
+		robot_suit.update_icon()
 	else
 		new /obj/item/robot_suit(T)
 		new /obj/item/bodypart/l_leg/robot(T)
diff --git a/code/modules/power/singularity/collector.dm b/code/modules/power/singularity/collector.dm
index b1b0d2d718..054b91f273 100644
--- a/code/modules/power/singularity/collector.dm
+++ b/code/modules/power/singularity/collector.dm
@@ -110,7 +110,7 @@
 		if(!user.transferItemToLoc(W, src))
 			return
 		loaded_tank = W
-		update_icons()
+		update_icon()
 	else if(W.GetID())
 		if(allowed(user))
 			if(active)
@@ -197,14 +197,14 @@
 	if(active)
 		toggle_power()
 	else
-		update_icons()
+		update_icon()
 
 /obj/machinery/power/rad_collector/rad_act(pulse_strength)
 	. = ..()
 	if(loaded_tank && active && pulse_strength > RAD_COLLECTOR_EFFICIENCY)
 		stored_power += (pulse_strength-RAD_COLLECTOR_EFFICIENCY)*RAD_COLLECTOR_COEFFICIENT
 
-/obj/machinery/power/rad_collector/proc/update_icons()
+/obj/machinery/power/rad_collector/update_icon()
 	cut_overlays()
 	if(loaded_tank)
 		add_overlay("ptank")
@@ -222,7 +222,7 @@
 	else
 		icon_state = "ca"
 		flick("ca_deactive", src)
-	update_icons()
+	update_icon()
 	return
 
 #undef RAD_COLLECTOR_EFFICIENCY