adds emissive overlays to shelter capsule machines (#28941)

code/modules/mining/equipment/survival_pod.dm

@@ -184,6 +184,11 @@
 	component_parts += new /obj/item/stack/sheet/glass(null)
 	component_parts += new /obj/item/stack/cable_coil(null, 1)
 	RefreshParts()
+	update_icon()
+
+/obj/machinery/sleeper/survival_pod/update_overlays()
+	. = ..()
+	. += emissive_appearance(icon, "[icon_state]_lightmask")
 
 //NanoMed
 /obj/machinery/economy/vending/wallmed/survival_pod
@@ -208,6 +213,17 @@ MAPPING_DIRECTIONAL_HELPERS(/obj/machinery/economy/vending/wallmed/survival_pod,
 	anchored = TRUE
 	density = TRUE
 	pixel_y = -32
+	light_power = 1.4
+	light_range = MINIMUM_USEFUL_LIGHT_RANGE
+	light_color = "#79dcc4"
+
+/obj/item/gps/computer/Initialize(mapload)
+	. = ..()
+	update_icon()
+
+/obj/item/gps/computer/update_overlays()
+	. = ..()
+	. += emissive_appearance(icon, "[icon_state]_lightmask")
 
 /obj/item/gps/computer/wrench_act(mob/living/user, obj/item/I)
 	. = TRUE
@@ -234,9 +250,9 @@ MAPPING_DIRECTIONAL_HELPERS(/obj/machinery/economy/vending/wallmed/survival_pod,
 	desc = "A heated storage unit."
 	icon_state = "donkvendor"
 	icon = 'icons/obj/lavaland/donkvendor.dmi'
-	light_range = 8
-	light_power = 1.2
-	light_color = "#DDFFD3"
+	light_range_on = 3
+	light_power_on = 1
+	light_color = "#79dcc4"
 	max_n_of_items = 10
 	pixel_y = -4
 	flags = NODECONSTRUCT
@@ -262,7 +278,8 @@ MAPPING_DIRECTIONAL_HELPERS(/obj/machinery/economy/vending/wallmed/survival_pod,
 	return
 
 /obj/machinery/smartfridge/survival_pod/update_overlays()
-	return list()
+	underlays.Cut()
+	underlays += emissive_appearance(icon, "[icon_state]_lightmask")
 
 /obj/machinery/smartfridge/survival_pod/accept_check(obj/item/O)
 	return isitem(O)