Hi,
We have found that the cell tooltips are not accessible for users who are using screen readers or for users who are solely using keyboard for navigation.
The W3C guidelines are a bit vague, but they do suggest:
A tooltip is a popup that displays information related to an element when the element receives keyboard focus or the mouse hovers over it. It typically appears after a small delay and disappears when Escape is pressed or on mouse out.
https://www.w3.org/WAI/ARIA/apg/patterns/tooltip/
Would it be possible to include an option to show cell tooltips when the cell has focus, instead of only when the mouse moves over the cell?
Thanks,
Josh