diff --git a/media/baseset/innerhighlight.grf b/media/baseset/innerhighlight.grf
index 4118f515d1..ad6eed68cd 100644
Binary files a/media/baseset/innerhighlight.grf and b/media/baseset/innerhighlight.grf differ
diff --git a/src/table/sprites.h b/src/table/sprites.h
index 5e78eea94b..a56ae95f71 100644
--- a/src/table/sprites.h
+++ b/src/table/sprites.h
@@ -315,6 +315,9 @@ static const SpriteID SPR_ZONING_INNER_HIGHLIGHT_BLACK      = SPR_ZONING_INNER_H
 static const SpriteID SPR_ZONING_INNER_HIGHLIGHT_LIGHT_BLUE = SPR_ZONING_INNER_HIGHLIGHT_BASE + 22;
 static const SpriteID SPR_ZONING_INNER_HIGHLIGHT_ORANGE     = SPR_ZONING_INNER_HIGHLIGHT_BASE + 23;
 static const SpriteID SPR_ZONING_INNER_HIGHLIGHT_WHITE      = SPR_ZONING_INNER_HIGHLIGHT_BASE + 24;
+static const SpriteID SPR_ZONING_INNER_HIGHLIGHT_PURPLE     = SPR_ZONING_INNER_HIGHLIGHT_BASE + 25;
+static const SpriteID SPR_ZONING_INNER_HIGHLIGHT_BROWN      = SPR_ZONING_INNER_HIGHLIGHT_BASE + 26;
+static const SpriteID SPR_ZONING_INNER_HIGHLIGHT_YELLOW     = SPR_ZONING_INNER_HIGHLIGHT_BASE + 27;
 
 /* Sprites for the route step marker. */
 static const SpriteID SPR_ROUTE_STEP_BASE          = SPR_ZONING_INNER_HIGHLIGHT_BASE + ZONING_INNER_HIGHLIGHT_SPRITE_COUNT;