Change A/B and X/Y button mappings globally

Just got the new GameShell. I have my buttons in an Xbox config – the A button is at the 6 o’clock position, the X button is at 9 o’clock, etc.

I see a setting to change the button mappings – but they apply only to Retroarch, it seems – not the system overall. I have to mentally reverse A/B and X/Y when using the overall system. Is there a setting I’m not seeing to address this, or a mapping file we can change?

Yes, you can modify the keypad code and upload it to the board. [Tutorial] How to compile and upload code to the keypad

Here is the repository