Are there white letters or numbers in this photograph?
No, there are numbers but they are black.
    src        edge_attr  dst
0     0  to the right of    6
1     0  to the right of    7
2     1  to the right of    2
3     2  to the right of    3
4     2   to the left of    1
5     2  to the right of    6
6     2   to the left of    5
7     2  to the right of    7
8     3  to the right of    6
9     3   to the left of    2
10    4  to the right of    7
11    5  to the right of    2
12    5  to the right of    9
13    5               of    8
14    6   to the left of    0
15    6   to the left of    2
16    6   to the left of    3
17    7   to the left of    4
18    7   to the left of    9
19    7   to the left of   10
20    7   to the left of    0
21    7   to the left of    2
22    7               of    8
23    8               of    8
24    9  to the right of    7
25    9   to the left of    5
26   10  to the right of    7