One thing I miss from the old layout is having unread threads bold while read threads are normal in the forum list, as it made it a lot easier to see at a glance (even with the blue highlight I find I have to double-check).
Currently both unread and read are bold.
I like where the new design is going, but I've going to have to agree with Lactose! on this particular subject. I have a much harder time seeing which posts are read and which ones aren't with the new design. I think it's partially the font, but it also feels like the unread posts have a much less pronounced background as well now..? Maybe that's just my imagination or screen settings or something..
[Edit] It's my screen. Using another screen, it's still rather pronounced. This is interesting though, I didn't have problems seeing it before. Does anyone know if poor dynamic contrast settings could affect this?
It's possible that the color changes reduced the relative perception of the unread row background color. Personally, I use the unread dot a lot more, but I'll see what we can do with the background to make it more pronounced for low contrast screens.