On my 13" laptop monitor even after the latest update the font type and size is an issue. I’m guessing most people aren’t using such a small monitor, but I bought this laptop explicitly to use for live performance. Also there common font types across software for good reason. It’s great to be unique, but if it’s at the expense of people who want to use your product, but don’t have greatest eyesight maybe your amazingly unique workflow is enough.
it also isn’t extremely easy to both see the note value while you are trying to click just 1 incriminate up due to the fact that you are effectively covering the information that you are trying to modify when changing the note to a higher value I think creating a little popup window above the slot or at least putting the buttons to the right of the value display would be a more effective method for seeing what you are doing, with a small popup you could easily have the text displayed larger, without needing to resize the app though.
Also I feel having the ability to use the scroll wheel to change note/volume would make for a better ux, and copy/ paste note data would be helpful as well.