Yeah, without a side-by-side comparison with another I’m not seeing anything slightly infuriating.

Looks good to me. The letters are following the same pattern as the numbers - Top to bottom, left to right. ‘C’ is likely a Clear button in case you mess up your code. XYZ was chosen instead of ABC since C already has a use.

We just got some nice glass tupperware on clearance. I’m excited to use it