Left Hand Navigation
The left side navigation menu has been restyled to look a little snappier. But more importantly, there is a minimized menu mode, which gives some extra room to people with small browsers and when in full on editing mode.
Data Table Updates
The data tables have been restyled to match the new menu. Also, the arrow for expanding / collapsing data tables is now on the right, giving better alignment to table headers and titles, but also looks more like a button to encourage clicking.