Terraforming Mars playmat overlay w/ rounded corners

I really liked the angled style for the cubes on bombmk's original design! But the rounded corners on 3D-Dave's design were also great! So I made a design that combined both.

These just sit on top of the player mat, there is no protrusion around the bottom.

I've also included a half-size version that just focuses on the cube management. That version is much easier to store and quicker to print.