Just right-click.

Thanks, it worked!

It would be useful to have the option to pain grass to cover the default surfaces (like where the map already had dirt, or cliff, or other textures).

@Abludica It's not possible to change cliff to grass (because they are surface type). But I added a new function to change existing gravel, pavement or field to grass (clip mode) today.

引用自 BloodyPenguin：

@Abludica It's not possible to change cliff to grass (because they are surface type). But I added a new function to change existing gravel, pavement or field to grass (clip mode) today.

I saw that, I think it's why I had to resubscribe in order to load my game.

@Abludica I think that's the final time when you had to resub :) From now on type not found error shouldn't happen)

To pint an area with grass where no default grass is just paint farmland and undo it with the right-click. The grass will stay. But be aware that the slope is not too steep as you cannot paint rocks.