POLARIS: 3000% human/update_icons() improvement

Using overlays in lists and a mutable_appearance

code/modules/surgery/limb_reattach.dm

@@ -57,7 +57,7 @@
 	"<span class='notice'>You have attached [target]'s [E.name] to the [E.amputation_point].</span>")
 	user.drop_from_inventory(E)
 	E.replaced(target)
-	target.update_body()
+	target.update_icons_body(FALSE)
 	target.updatehealth()
 	target.UpdateDamageIcon()
 
@@ -99,7 +99,7 @@
 	if(E.children)
 		for(var/obj/item/organ/external/C in E.children)
 			C.status &= ~ORGAN_DESTROYED
-	target.update_body()
+	target.update_icons_body(FALSE)
 	target.updatehealth()
 	target.UpdateDamageIcon()
 
@@ -149,7 +149,7 @@
 			if(L.sabotaged)
 				new_limb.sabotaged = 1
 
-	target.update_body()
+	target.update_icons_body(FALSE)
 	target.updatehealth()
 	target.UpdateDamageIcon()
 

code/modules/surgery/other.dm

@@ -110,7 +110,7 @@
 	var/trans = container.reagents.trans_to_mob(target, container.amount_per_transfer_from_this, CHEM_BLOOD) //technically it's contact, but the reagents are being applied to internal tissue
 	if (trans > 0)
 		affected.status &= ~ORGAN_DEAD
-		affected.owner.update_body(1)
+		affected.owner.update_icons_body()
 
 		user.visible_message("<font color='blue'>[user] applies [trans] units of the solution to affected tissue in [target]'s [affected.name].</font>", \
 			"<font color='blue'>You apply [trans] units of the solution to affected tissue in [target]'s [affected.name] with \the [tool].</font>")