Are there boxes to the left of the monitor that is black?
No, there is a pillow to the left of the monitor.
    src        edge_attr  dst
0     0   to the left of    9
1     0   to the left of   14
2     0           inside   17
3     0   to the left of   15
4     0  to the right of    3
..  ...              ...  ...
73   17   to the left of   14
74   17   to the left of   15
75   18               on    2
76   19   to the left of   12
77   20   to the left of    5

[78 rows x 3 columns]