Still testing and almost ready to switch from vB3.8 to xF1.3... The only change to the look and feel, apart from changing the color pallette, is to make the New Thread button more obvious. I decide it to insert it inside the TitleBar (the same way it looks when subforums exist), and make it a little bigger. Since it is inside the TitleBar, i'm not adding white space, so it looks ok.
Here's how it looks
I've done this very fast using the developer console in Chrome. Basically, i've styled the TitleBar by adding a padding-right of 120px and made it relative; I then moved the TopCtrl inside the TitleBar, made the TopCtrl absolute, right:0, and adjusted the height and line-height around 35px.
It looks good, but i want to be sure and so i'm asking the experts if this is the way to go or if there is a better method.