Despite referring to these form as train tracks, they are called "ladders" in the code base. One side is very thick.

Dmitri Cherniak

Ladders (Thickness)

From

Light Years: Process Works

Description
Artist
Dmitri Cherniak
Blockchain
Ethereum
Token standard
ERC-721
Contract address
0x34...51a9
Token
10
Artist
Dmitri Cherniak
Activity
ArtworkPriceFromToTime