Does the open window look brown?
No, the window is white.
    src        edge_attr  dst
0     0   to the left of   13
1     0   to the left of   14
2     2  to the right of   12
3     2  to the right of    6
4     2               of    8
5     3               of    1
6     4  to the right of   10
7     5  to the right of   12
8     5  to the right of    6
9     6   to the left of    5
10    6   to the left of    2
11    7               of    1
12    7   to the left of   14
13    9  to the right of   11
14    9               of    1
15   10   to the left of    4
16   10   to the left of   14
17   10               of    1
18   11   to the left of    9
19   12               of    8
20   12   to the left of    2
21   12   to the left of    5
22   13  to the right of    0
23   14               of    7
24   14  to the right of   10
25   14  to the right of    7
26   14  to the right of    0
27   14               of    1