What color do the tiles have?
The tiles have brown color.
    src        edge_attr  dst
0     0  to the right of    8
1     0   to the left of    3
2     0  to the right of    1
3     1   to the left of    0
4     1   to the left of    2
5     2  to the right of    1
6     2  to the right of    8
7     3  to the right of    0
8     5   to the left of    7
9     7  to the right of    5
10    8   to the left of    0
11    8   to the left of    2