Grid now provided by background

src/Main.cake

@@ -721,7 +721,7 @@ Rush Hour database from Michael Fogleman.\n\n")
     ;;                                166 166))
     ;;  (SDL_RenderCopy renderer pieces-texture (addr src-rect) (addr dest-rect)))
 
-    (scope ;; Draw grid
+    (ignore ;; Draw grid
      (var row int 0)
      (while (< row g-game-board-grid-size)
        (var column int 0)