hey there Sissa! It has a .PNG sprite sheet made of 16x16 tiles, you can paint a map with them. The screenshots are the same static shape of map with randomly selected tiles that's in the file. With less repetition it is easy to build good looking maps.
Please let me know if you would like an another format of file to be attached to this project as well, as far as I know sprite sheets are way to go and standard for these type of assets.
Cheers!