I also rarely click the scrollbar (except when "jumping to approximate absolute position" in a long document), however, I always look at it to get the current p

I also rarely click the scrollbar (except when "jumping to approximate absolute position" in a long document), however, I always look at it to get the current position/document length. Therefore, my usual problem is terrible contrast of scrollbars. I have modified GTK and Qt themes to show dark blue slider on a light gray background, but only about half of the apps respect it.