What is the frame around of?
The frame is around the mirror.
    src        edge_attr  dst
0     0  to the right of    9
1     1               on    2
2     2   to the left of    7
3     2   to the left of    4
4     3   to the left of    4
5     3   to the left of    7
6     4  to the right of    3
7     4  to the right of    2
8     4           around    7
9     5               on    2
10    7  to the right of    3
11    7  to the right of    2
12    9   to the left of    0