Are both the sign and the counter the same color?
No, the counter is red and the sign is white.
   src        edge_attr  dst
0    0  to the right of    2
1    2   to the left of    0
2    4  to the right of    5
3    4  to the right of    6
4    4               on    3
5    5   to the left of    4
6    5   to the left of    6
7    6   to the left of    4
8    6               on    3
9    6  to the right of    5