Adds new exoplanet sprites (#14677)

code/modules/maps/planet_types/barren.dm

@@ -18,6 +18,9 @@
 	..()
 	atmosphere.remove_ratio(0.9)
 
+/obj/effect/overmap/visitable/sector/exoplanet/barren/get_surface_color()
+	return "#6C6251"
+
 /datum/random_map/noise/exoplanet/barren
 	descriptor = "barren exoplanet"
 	smoothing_iterations = 4

code/modules/maps/planet_types/jungle.dm

@@ -10,6 +10,9 @@
 	possible_themes = list(/datum/exoplanet_theme/mountains/breathable)
 	ruin_tags_blacklist = RUIN_VOID
 
+/obj/effect/overmap/visitable/sector/exoplanet/grass/grove/get_surface_color()
+	return "#5C7F34"
+
 /area/exoplanet/grass/grove
 	base_turf = /turf/simulated/floor/exoplanet/grass/grove
 

code/modules/overmap/exoplanets/exoplanet_skybox.dm

@@ -2,7 +2,7 @@
 	return skybox_image
 
 /obj/effect/overmap/visitable/sector/exoplanet/proc/get_base_image()
-	var/image/base = image('icons/skybox/planet.dmi', "base")
+	var/image/base = image('icons/skybox/planet.dmi', "base[pick(1,2,3)]")
 	base.color = get_surface_color()
 	return base
 
@@ -15,7 +15,7 @@
 		skybox_image.overlays += theme.get_planet_image_extra()
 
 	if (water_color) //TODO: move water levels out of randommap into exoplanet
-		var/image/water = image('icons/skybox/planet.dmi', "water")
+		var/image/water = image('icons/skybox/planet.dmi', "water[pick(1,2,3)]")
 		water.color = water_color
 		water.appearance_flags = DEFAULT_APPEARANCE_FLAGS | PIXEL_SCALE
 		water.SetTransform(rotation = rand(0, 360))
@@ -27,23 +27,15 @@
 		if (!atmo_color)
 			atmo_color = COLOR_WHITE
 
-		var/image/clouds = image('icons/skybox/planet.dmi', "weak_clouds")
-
-		if (water_color)
-			clouds.overlays += image('icons/skybox/planet.dmi', "clouds")
-
+		var/image/clouds = image('icons/skybox/planet.dmi', "clouds[pick(1,2,3)]")
 		clouds.color = atmo_color
 		skybox_image.overlays += clouds
 
-		var/image/atmo = image('icons/skybox/planet.dmi', "atmoring")
-		skybox_image.underlays += atmo
 
-	var/image/shadow = image('icons/skybox/planet.dmi', "shadow")
+	var/image/shadow = image('icons/skybox/planet.dmi', "shadow[pick(1,2,3)]")
 	shadow.blend_mode = BLEND_MULTIPLY
 	skybox_image.overlays += shadow
 
-	var/image/light = image('icons/skybox/planet.dmi', "lightrim")
-	skybox_image.overlays += light
 
 	if (prob(20))
 		var/image/rings = image('icons/skybox/planet_rings.dmi')