What device isn't white?
The device is a keyboard.
     src        edge_attr  dst
0      0  to the right of    3
1      0               on   11
2      0  to the right of   27
3      1   to the left of   29
4      2  to the right of   20
..   ...              ...  ...
125   29   to the left of   25
126   29  to the right of   20
127   29  to the right of    4
128   29  to the right of    7
129   29   to the left of   26

[130 rows x 3 columns]