Ok great but what if it had an angle?
Definitely an idea! Would make cost slightly higher most likely. It's hard to tell from back but the whole design of this case is to minimize machining time and keep costs low (after all, it's a case for a $30 keyboard). Current design has minimal tool changes and other rotations.
If there is serious interest, I could run a quick form but coming off my last GB experience, I prefer to keep options extremely limited and simple. Probably only 1 configuration (non-angled), only 1 finishing type (anodizing), and 2 colors (silver and black). Contact your local powder coat / Cerakote shop for crazy colors as the slightly looser tolerances (as to allow angling in the board that has the micro USB sticking out wayyy below the PCB) will make it easy to do aftermarket coatings yourself.