Would be 5⭐ if it was possible to set a minimum height for the indicator. As of now, the height scales inversely with the number of tabs, and it becomes too thin if the tab list is long (feature request! 😇).

Not entirely accurate, but still usefull

Works fine.
My only grip with it is that I particularly use the scrollbar in TST on the right side and I can't choose the marker to be there.