When using arrow keys inside the pie chart, the focus on the individual slice is not efficiently visible because of the rectangle shape. It is not directly visible to which piece the rectangle refers in some narrow cases. To more clearly highlight which slice has the focus, the border of the element itself could be highlighted.
Is there an option for focus with the exact border of the slice rather than a rectangle?
If this is not available right now, are there any plans for this in the foreseeable future?