To be able to edit these config items, you need to delete your old configuration file so a new one can generate or you can add them manually using the following defaults.
Sorry for the delay as I never noticed the problem until tonight. The bug is fixed and should be good for future versions. (knock on wood)
Some minor improvements you may or may not notice are: - Snow generation now calls the BlockFormEvent. (helps compatibility with world guard keeping snow out)
- Snow blocks and snow layers don't kill grass. (No more dirt under the beautiful snow)
- 1.16.3+ support until Mojang breaks it again.
The plugin is now configured to change the chance for a snow to spawn in a chunk every tick. Another configuration option is a world whitelist so only in worlds you want the snowier snow will happen.
+ Added a configuration
~ Fixed default snow spawn percent