First day of week in calendar heatmap in statistics

[max.kim]

In statistics, the calendar heatmap now has the first day of the week set to Sunday.
How can i set Monday as first day of week?

Anki version 2.1.35

[abdo]

I think @hengiesel is working on adding this to Anki here: https://github.com/ankitects/anki/pull/800