the accessibility support is really important for our projects. The keyboard support of your widgets is overall ok, but the screenreader support is horrible. I tested with Windows 10 + Edge + JAWS Screenreader (v18) (Our customers are bound to the JAWS software).
I.e. spreadsheet: change the active cell with arrows keys -> the screenreaders doesnt read anything.
I.e. multiselect -> focus the input and the screenreader doesnt read the selected items. Also when I open the dropdown and change the selection, it reads nothing.
This are just two examples and Im sure there are similar problems in the other widgets. It would be great if you would make the widgets screenreader-ready in the future.
Can you confirm these problems?