diff --git a/gfx/Larwick_Overmap/pngs_overmap_16x16/go_overmap_granularity.json b/gfx/Larwick_Overmap/pngs_overmap_16x16/go_overmap_granularity.json
index 18a7c15d8a..7cacd9e09c 100644
--- a/gfx/Larwick_Overmap/pngs_overmap_16x16/go_overmap_granularity.json
+++ b/gfx/Larwick_Overmap/pngs_overmap_16x16/go_overmap_granularity.json
@@ -151,18 +151,15 @@
   },
   {
     "id": [ "roof_or_air$vague" ],
-    "fg": "unknown_terrain_vague",
-    "bg": "open_air_blue"
+    "fg": "unknown_air_vague"
   },
   {
     "id": [ "roof_or_air$outlines" ],
-    "fg": "unknown_terrain_outlines",
-    "bg": "open_air_blue"
+    "fg": "unknown_air_outlines"
   },
   {
     "id": [ "roof_or_air$details" ],
-    "fg": "unknown_terrain_details",
-    "bg": "open_air_blue"
+    "fg": "unknown_air_details"
   },
   {
     "id": [ "underground_dirt$vague" ],
diff --git a/gfx/Larwick_Overmap/pngs_overmap_16x16/unknown_terrain/unknown_air_details.png b/gfx/Larwick_Overmap/pngs_overmap_16x16/unknown_terrain/unknown_air_details.png
new file mode 100644
index 0000000000..3dda53acc8
Binary files /dev/null and b/gfx/Larwick_Overmap/pngs_overmap_16x16/unknown_terrain/unknown_air_details.png differ
diff --git a/gfx/Larwick_Overmap/pngs_overmap_16x16/unknown_terrain/unknown_air_outlines.png b/gfx/Larwick_Overmap/pngs_overmap_16x16/unknown_terrain/unknown_air_outlines.png
new file mode 100644
index 0000000000..123ce91f91
Binary files /dev/null and b/gfx/Larwick_Overmap/pngs_overmap_16x16/unknown_terrain/unknown_air_outlines.png differ
diff --git a/gfx/Larwick_Overmap/pngs_overmap_16x16/unknown_terrain/unknown_air_vague.png b/gfx/Larwick_Overmap/pngs_overmap_16x16/unknown_terrain/unknown_air_vague.png
new file mode 100644
index 0000000000..e994ce3931
Binary files /dev/null and b/gfx/Larwick_Overmap/pngs_overmap_16x16/unknown_terrain/unknown_air_vague.png differ
diff --git a/gfx/Larwick_Overmap/pngs_overmap_16x16/unknown_terrain/unknown_terrain_details.png b/gfx/Larwick_Overmap/pngs_overmap_16x16/unknown_terrain/unknown_terrain_details.png
index 4031db9e51..a5b1fa01a6 100644
Binary files a/gfx/Larwick_Overmap/pngs_overmap_16x16/unknown_terrain/unknown_terrain_details.png and b/gfx/Larwick_Overmap/pngs_overmap_16x16/unknown_terrain/unknown_terrain_details.png differ
diff --git a/gfx/Larwick_Overmap/pngs_overmap_16x16/unknown_terrain/unknown_terrain_outlines.png b/gfx/Larwick_Overmap/pngs_overmap_16x16/unknown_terrain/unknown_terrain_outlines.png
index f1b2656666..771a2af709 100644
Binary files a/gfx/Larwick_Overmap/pngs_overmap_16x16/unknown_terrain/unknown_terrain_outlines.png and b/gfx/Larwick_Overmap/pngs_overmap_16x16/unknown_terrain/unknown_terrain_outlines.png differ