Does the marker look metallic and yellow?
Yes, the marker is metallic and yellow.
    src        edge_attr  dst
0     2  to the right of    9
1     2  to the right of   15
2     3   to the left of   13
3     3   to the left of   10
4     3     flying above   11
5     3            above   11
6     5   to the left of   11
7     5   to the left of   17
8     5   on the side of   15
9     6      approaching   17
10    6        flying in   12
11    7        on top of   14
12    7  to the right of   16
13    9   to the left of    2
14    9  to the right of   15
15   10  to the right of    3
16   11  to the right of   15
17   11             near   17
18   11  to the right of    5
19   11            below    3
20   13  to the right of    3
21   14  to the right of   16
22   15   to the left of   17
23   15   to the left of   11
24   15   to the left of    2
25   15   to the left of    9
26   16   to the left of    7
27   16   to the left of   14
28   17          next to   11
29   17             near   11
30   17  to the right of    5
31   17  to the right of   15