Title: new posts icon
Description: I find it hard to see in what categories there are new posts. Right now I'm looking to the widget on the top of the page and the small 'page' icon next to the last post username, to see when there is a new post.
I think that a small border around the image of the category (like the icon of the 'Graphic School') or the background highlighted (like when hovered) would make it visible.
It is just a suggestion you are free to do it or not. If you have any other way to see where new topics are, I'm happy to hear.