The roots you guys implemented to "grow" under dirt blocks, they're pure awesomeness. Don't underestimate the little and inconspicuous things, they add a lot to the entire atmosphere.

That said, it would be very neat if those root would randomly sprout in a radius of xyz blocks extending from the player (to limit the load on the system). As it is now, they seem to be once decorated and that's it. End of story.

But what if you mine and leave a tunnel or tunnels of dirt behind you, and then some time later you come back and roots are everywhere.

This is less of an issue but rather more of a suggestion, best to put it on the forums in the appropriate section.

It would help if you had a link to the forum on the github page :P