Fininsh tidying

consts.py

@@ -9,3 +9,17 @@ PADDING = 5
 
 CELL_SIZE = WIN_WIDTH / COLS
 CELL_SIZE_PADDED = CELL_SIZE - PADDING * 2
+
+CELL = 0
+WALL = 1
+START = 2
+END = 3
+
+
+BACKGROUND = (0, 0, 0)
+PATH_COLOR = (128, 128, 128)
+
+CELL_COLOR = (255, 255, 255)
+WALL_COLOR = (0, 255, 0)
+START_COLOR = (255, 0, 0)
+END_COLOR = (0, 0, 255)