Is there a hat that is not gray?
Yes, there is a purple hat.
     src        edge_attr  dst
0      0   to the left of   20
1      0   to the left of   16
2      0   to the left of    1
3      0  to the right of   17
4      0   to the left of   11
..   ...              ...  ...
159   25   to the left of    5
160   25  to the right of   24
161   25  to the right of   22
162   25  to the right of   23
163   25  to the right of   21

[164 rows x 3 columns]