Easy and straight-forward overlay placed on player mat (or glued to it).
Print size 220mm x 160mm x 3mm (one element) Idea was to keep as much of original artwork as possible but prevent tokens from accidental movement.
As the artwork of the mat has tight spacing between fields, I did minimum width of the walls - only 0.4mm. Make sure your slicer renders them.
In Bambu Studio you need to change Wall Generator from "Classic" to "Arachne". Enjoy!