diff --git a/data/tilesets/headers.inc b/data/tilesets/headers.inc
index 32eec2ab94..4ebfe80a52 100644
--- a/data/tilesets/headers.inc
+++ b/data/tilesets/headers.inc
@@ -46,7 +46,7 @@ gTileset_Dewford:: @ 83DF74C
 gTileset_Slateport:: @ 83DF764
 	.byte TRUE @ is compressed
 	.byte TRUE @ is secondary tileset
-	.2byte 0 @ padding
+	.2byte 1 << 12 @ lightPalettes
 	.4byte gTilesetTiles_Slateport
 	.4byte gTilesetPalettes_Slateport
 	.4byte gMetatiles_Slateport
diff --git a/data/tilesets/secondary/slateport/metatiles.bin b/data/tilesets/secondary/slateport/metatiles.bin
index 72f671f71d..0cb7f64aca 100644
Binary files a/data/tilesets/secondary/slateport/metatiles.bin and b/data/tilesets/secondary/slateport/metatiles.bin differ
diff --git a/data/tilesets/secondary/slateport/palettes/06.pal b/data/tilesets/secondary/slateport/palettes/06.pal
index 0c2d8d3ca3..5f71b74caa 100644
--- a/data/tilesets/secondary/slateport/palettes/06.pal
+++ b/data/tilesets/secondary/slateport/palettes/06.pal
@@ -1,7 +1,7 @@
 JASC-PAL
 0100
 16
-24 41 82
+0 64 0
 255 255 255
 230 230 238
 205 205 222
@@ -16,4 +16,4 @@ JASC-PAL
 197 180 189
 164 156 164
 131 106 172
-115 197 164
+112 192 160
diff --git a/data/tilesets/secondary/slateport/palettes/12.pal b/data/tilesets/secondary/slateport/palettes/12.pal
index 4b0812f094..07fa673902 100644
--- a/data/tilesets/secondary/slateport/palettes/12.pal
+++ b/data/tilesets/secondary/slateport/palettes/12.pal
@@ -1,19 +1,19 @@
 JASC-PAL
 0100
 16
+0 0 136
+222 205 148
+184 168 80
+0 0 0
+0 0 0
+148 148 156
+98 98 123
+64 72 104
+0 0 0
+0 0 0
+148 205 255
 0 0 0
 0 0 0
 0 0 0
 0 0 0
-0 0 0
-0 0 0
-0 0 0
-0 0 0
-0 0 0
-0 0 0
-0 0 0
-0 0 0
-0 0 0
-0 0 0
-0 0 0
-0 0 0
+248 224 120
diff --git a/data/tilesets/secondary/slateport/tiles.png b/data/tilesets/secondary/slateport/tiles.png
index ff7588d2dd..beef335d53 100644
Binary files a/data/tilesets/secondary/slateport/tiles.png and b/data/tilesets/secondary/slateport/tiles.png differ