When I look at a forum index with enough threads to go to two or more pages, the page numbers at top and bottom indicate very clearly which is the current page number. When I look at a multi-page topic, the page numbers are in a different style,and I need to look very hard to identify the current page.
It’s a small point, but if you replace the “topic style” with the “forum style” at your next software update I think it would be an improvement.