Update app.py

app.py

@@ -60,10 +60,10 @@ def draw_grid(data, highlight_coords=None):
         # Determine if the road is vertical or horizontal based on start and end coordinates
         if start[0] == end[0]:  # Vertical road
             for y in range(min(start[1], end[1]), max(start[1], end[1]) + 1):
-                ax.add_patch(plt.Rectangle((start[0], nrows-y-1), 1, 1, color=road_color))
+                ax.add_patch(plt.Rectangle((start[0], nrows-y-1), 1, 1, color=road['color']))
         else:  # Horizontal road
             for x in range(min(start[0], end[0]), max(start[0], end[0]) + 1):
-                ax.add_patch(plt.Rectangle((x, nrows-start[1]-1), 1, 1, color=road_color))
+                ax.add_patch(plt.Rectangle((x, nrows-start[1]-1), 1, 1, color=road['color']))
 
     # Draw buildings
     for building in data['buildings']: