Do the dishwasher and the tea pot have a different colors?
No, both the dishwasher and the tea pot are black.
     src        edge_attr  dst
0      0   to the left of   22
1      0   to the left of   14
2      0   to the left of    1
3      0   to the left of   10
4      0   to the left of    6
..   ...              ...  ...
135   28  to the right of    3
136   28  to the right of   19
137   29  to the right of   18
138   29   to the left of   13
139   29   to the left of   27

[140 rows x 3 columns]