Whenever I encounter snow covered grass, the textures don't seem to connect. I'm assuming because the grass block is being covered by a separate block, minecraft:snow_layer. I have tried and failed to figure out how to add this in the config options. I'm not sure what class the snow layer block from minecraft is, and even if it would work. So I'm assuming that this isn't implemented.

Below is a screenshot of minecraft (and BoP grass) that renders normally:

This is a screenshot on how I want this to be implemented (I just placed a snow block in place of the grass):