Thanks! Glad the 9-slice margins stood out. You're right that hex needs its own 60° and 120° corners, so I've added them: v1.1 is up now with a hex path arrow set for the pointy-top grid (start, end, straight, 60° and 120° corners in all 3 colours, 81 tiles). The README covers the hex autotile rule and neighbour offsets, and the last screenshot shows them on a hex board.