I’ve quickly forked the mod for 2.1 since I very much wanted to have it in 2.1: https://mods.factorio.com/mod/mining-scars-fork
Hope it’s all right. Of course, once you update, I’ll mark it as deprecated.
There’s a bug you can fix in control.lua, line 55, where it should say ‘midland-cracked-lichen-dark’ instead of ‘midland-craked-lichen-dark’.