The white background is actually rendered with a HDRR, the smilies are now SM4.0 compliants (heavy use of Geometry Shaders,) and the SQL entries are now made of 32KiB batches instead of 128KiB like they used to be, this more precise granularity allows better, and more importantly faster, implementations of Forum effects such as Annoying Troll Fetching (ATF) or the overused but crowd favorite still, the Straw Reaching Mapping (SRM).