Is the color of the carpet different than the color of the heart?
No, both the carpet and the heart are red.
    src        edge_attr  dst
0     0   to the left of    3
1     0   to the left of    9
2     2  to the right of    4
3     3  to the right of    5
4     3               on   11
5     3  to the right of    8
6     3  to the right of    6
7     3  to the right of    0
8     4   to the left of    2
9     5   to the left of    3
10    5  to the right of    8
11    5               on   11
12    6   to the left of    3
13    7   to the left of    9
14    8   to the left of    3
15    8   to the left of    5
16    9  to the right of    0
17    9  to the right of    7
18   10               on    7