Honestly I don't see much difference other than the new brighter header. And there is a texture to the background image on the header, so it's definitely intentional. 

Blue and orange is recognized around the world as being an inviting color scheme to most people that invokes feelings of warmth and security, which is why many businesses use it. The blue on blue link texts need adjusting, (maybe change them to orange) I'll agree with that, and the thread/forum headers are a bit too large. Otherwise, everything pretty much looks the same as it always has. The thread posts being light gray on a dark gray background is easy on the eyes as bright whites and other bright colors can strain eyes pretty fast.

I don't use any mac devices, i have an android phone and I don't use it for browsing the web cause that's just pointless, so I don't know what the mobile version of the site looks like.

I think people just like having something to complain about.

 

~Shane