Is the black screen on the left?
No, the screen is on the right of the image.
    src        edge_attr  dst
0     0               on    1
1     0  to the right of   11
2     0  to the right of   17
3     0  to the right of   20
4     1  to the right of   20
..  ...              ...  ...
65   20   to the left of    0
66   20   to the left of   14
67   20   to the left of    2
68   20   to the left of    1
69   20   to the left of   18

[70 rows x 3 columns]