This mod adds a grid to the base terrain layers (not complete for all terrain, fields for example are a work in progress).
This mod also changes the base grass layer to a deeper, not so over-exposed, green and applies a better mini texture for the distance LODs.
Enjoy!
Bil_H
https://drive.google.com/open?id=10_YsBzgjxgio2-SoDOiI_1AoOzwcXl5v