Are both the traffic sign and the dispenser the same color?
Yes, both the traffic sign and the dispenser are black.
    src        edge_attr  dst
0     0  to the right of   11
1     1   to the left of   15
2     1   to the left of   14
3     2   to the left of   13
4     2  to the right of    9
5     2   to the left of    7
6     2   to the left of    6
7     2   to the left of    5
8     2  to the right of   14
9     3   to the left of   11
10    5  to the right of    2
11    5  to the right of    6
12    5  to the right of    8
13    6  to the right of    2
14    6  to the right of    8
15    6           behind    7
16    6   to the left of    5
17    7  to the right of    2
18    7  to the right of    8
19    7      in front of    6
20    8   to the left of    6
21    8               on    2
22    8   to the left of    5
23    8   to the left of    7
24    9               on    1
25    9   to the left of    2
26   10  to the right of   14
27   11   to the left of    0
28   11  to the right of    3
29   12  to the right of   15
30   13  to the right of   14
31   13  to the right of    2
32   14   to the left of   10
33   14   to the left of    2
34   14  to the right of    1
35   14   to the left of   13
36   15  to the right of    1
37   15   to the left of   12