Is there either any dark grass or mud?
No, there is grass but it is light.
     src        edge_attr  dst
0      0   to the left of    3
1      0  to the right of    1
2      0  to the right of   26
3      0   to the left of   15
4      1  to the right of    2
..   ...              ...  ...
170   32  to the right of   11
171   32  to the right of    6
172   32   to the left of    5
173   32  to the right of   10
174   33   to the left of    5

[175 rows x 3 columns]