Is the lid textured on one side, or both sides?
Could it be textured on both sides? Could the other side be 12x12 with no knotwork or geometric pattern?
Is the base textured on the inside of the box, or the outside?
I don't need the lid to be decorative. I would prefer it without the knotwork, and I would strongly prefer it without the geometric pattern in the center square. If I need a focal point for an elevation or a large floor, I prefer to add it myself on an as-needed basis rather than being committed to one arbitrarily chosen design permanently etched into the piece.
Plus, it's far easier to get players to accept the mental addition of details that aren't physically present than it is to convince players to ignore extraneous details that are.