update to 1.20

[Atomik0]

How complicated is it to modify the code for version 1.20?

[DerMattinger]

This project and the Earth Maps are old and outdated. You can use "Tiles" to create your own maps, already supporting 1.20.
Take a look here:

[GeekCornerGH]

Link since it seems @DerMattinger forgot to add it (or GitHub is bugged)