It is nice that they updated the UI. I hope they updated the GDI as well so the UI doesn’t do the WM_ERASEBKND stuff (ie. by default, the UI is double buffered)
The only advancement forward that I saw was the blur effect, and it’s a nice touch. Essentially, they blur the content beneath the transparent window. Nice. Usually, when you turn windows transparent, they tend to be too cluttered with the content from beneath the windows (this is especially true with terminal emulator windows).