Update app.py

app.py

@@ -255,7 +255,7 @@ with col2:
     
     
     if canvas_result.json_data is not None:
-    objects = canvas_result.json_data["objects"]
+        objects = canvas_result.json_data["objects"]
     if len(objects) > 0:
         last_touch = objects[-1]
         touch_x, touch_y = last_touch["left"], last_touch["top"]   sensation = avatar_sensation_map[int(touch_y), int(touch_x)]