diff --git a/.gitignore b/.gitignore
index 85e3751..55402af 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,12 +10,6 @@ build
 /lib
 __pycache__
 
-# unimportant files that won't pass clean dir check
-build*
-docs
-.claude
-my_games
-
 # images are produced by many tests
 *.png
 
diff --git a/src/scripts/cos_level.py b/src/scripts/cos_level.py
index 4b0f77f..e10cca0 100644
--- a/src/scripts/cos_level.py
+++ b/src/scripts/cos_level.py
@@ -105,7 +105,9 @@ class Level:
         self.height = height
         #self.graph = [(0, 0, width, height)]
         self.graph = RoomGraph( (0, 0, width, height) )
-        self.grid = mcrfpy.Grid(grid_size=(width, height), texture=t, pos=(10, 5), size=(1014, 700))
+        # #150 - Create grid with explicit layers for color and tilesprite
+        self.grid = mcrfpy.Grid(grid_size=(width, height), texture=t, pos=(10, 5), size=(1014, 700),
+                                layers={"color": "color", "tilesprite": "tile"})
         self.highlighted = -1 #debug view feature
         self.walled_rooms = [] # for tracking "hallway rooms" vs "walled rooms"
 
@@ -181,7 +183,8 @@ class Level:
         #    self.grid.at((0, y)).walkable = False
             self.grid.at((self.width-1, y)).walkable = False
 
-    def dig_path(self, start:"Tuple[int, int]", end:"Tuple[int, int]", walkable=True, sprite=None):
+    def dig_path(self, start:"Tuple[int, int]", end:"Tuple[int, int]", walkable=True, color=None, sprite=None):
+        #print(f"Digging: {start} -> {end}")
         # get x1,y1 and x2,y2 coordinates: top left and bottom right points on the rect formed by two random points, one from each of the 2 rooms
         x1 = min([start[0], end[0]])
         x2 = max([start[0], end[0]])
@@ -197,6 +200,8 @@ class Level:
             try:
                 if walkable:
                     self.grid.at((x, ty)).walkable = walkable
+                if color:
+                    self.grid.at((x, ty)).color = color
                 if sprite is not None:
                     self.grid.at((x, ty)).tilesprite = sprite
             except:
@@ -205,6 +210,8 @@ class Level:
             try:
                 if walkable:
                     self.grid.at((tx, y)).walkable = True
+                if color:
+                    self.grid.at((tx, y)).color = color
                 if sprite is not None:
                     self.grid.at((tx, y)).tilesprite = sprite
             except:
@@ -257,7 +264,7 @@ class Level:
             if prev_room:
                 start = room_coord(prev_room, margin=2)
                 end = room_coord(room, margin=2)
-                self.dig_path(start, end)
+                self.dig_path(start, end, color=(0, 64, 0))
             prev_room = room
 
         # Tile painting
diff --git a/src/scripts/cos_tiles.py b/src/scripts/cos_tiles.py
index 0054b54..349fe31 100644
--- a/src/scripts/cos_tiles.py
+++ b/src/scripts/cos_tiles.py
@@ -147,6 +147,7 @@ def wfc_pass(grid, possibilities=None):
             grid.at((x, y)).tilesprite = matches[0]
         else:
             grid.at((x, y)).tilesprite = -1
+            grid.at((x, y)).color = (32 * len(matches), 32 * len(matches), 32 * len(matches))
             possibilities[(x,y)] = matches
 
     if len(possibilities) == len(old_possibilities):