It's very nice, but I still don't understand the colors for the threads icons: The difference between read/unread seems to be done by greying out the icon, but that's not very noticeable... and why are some threads blue and others yellow? It seems that's unrelated to the read status, because in this moment I've both yellow and blue unread threads.
But that's the only confusing thing I found. The difference between read and unread is not as clear as in the older forum. Could that be improved?