Do the monitor and the wall have the same color?
No, the monitor is black and the wall is white.
    src        edge_attr  dst
0     1  to the right of   15
1     1  to the right of    4
2     2  to the right of   12
3     2  to the right of   20
4     2  to the right of   19
5     3   to the left of   21
6     3   to the left of   19
7     3   to the left of   15
8     4   to the left of    1
9     4  to the right of   15
10    4               on    3
11    5  to the right of   18
12    6  to the right of   18
13    6  to the right of    8
14    7   to the left of   13
15    7   to the left of   18
16    8   to the left of    6
17    8  to the right of   13
18    9            below   10
19   11   to the left of   18
20   11   to the left of   13
21   12   to the left of    2
22   12   to the left of   15
23   12   to the left of   19
24   13  to the right of    7
25   13   to the left of   18
26   13  to the right of   11
27   13   to the left of    8
28   14  to the right of   20
29   14   to the left of   17
30   15  to the right of    3
31   15   to the left of    4
32   15   to the left of    1
33   15  to the right of   19
34   15  to the right of   12
35   15  to the right of   20
36   17  to the right of   14
37   18   to the left of    5
38   18   to the left of    6
39   18  to the right of   11
40   18  to the right of   13
41   18  to the right of    7
42   19             near   20
43   19   to the left of    2
44   19  to the right of    3
45   19  to the right of   12
46   19   to the left of   15
47   19          next to   20
48   20   to the left of    2
49   20   to the left of   14
50   20   to the left of   15
51   20             near   19
52   20   to the left of   21
53   21  to the right of   20
54   21  to the right of    3