Increase the padding between page numbers
Look at the page numbers. They are too close together, which makes it harder to click them and it also looks bad.
This looks much better in my opinion, it's also much easier to click the numbers because they are spread out more.
It's very easy to achieve this with a minimal change to the forum CSS:
I'm posting this as an image because I doubt the forums have <code> tags.
The page numbers are links in <span>s with class "MiniPager". In theory they should be the only thing that is affected by this change, but someone who is more familiar with the structure of the forums would know better than me.