Damien, about the stats - Reviews, both count and time, even though things work like the way it is now for a long time, it looks to me that the “running total” would be more meaningful if it is was reckoned backwards (from today) instead of from the first day of the selected period forward. It looks to me, for example, that desiring to know the total study time I’ve had since 30 days before till 23 days before is a little weird, while it would be much more probable someone search for the total study time of the last week or of the last 15 days.
Thanks again for you patience and extraordinary work keeping Anki always in development.