If you look inside it's literally nothing like perlin noise at all, but it looks close enough so i count it Green flag to generate new terrain Click to toggle data Space to change seed
Seed in the thumbnail is 212221221212212601012030201121102121110212020021012002112121221221101212010110010212111102022212111020210210300202110212112102111021101002101100021221232020022222020112210211112101212112112102