My "minimum necessary changes" UI, NewWorld, has been refreshed for the release of The Serpent's Spine. As usual, the windows hold close to the new default style, adding in only the functionality I like ... and all the pieces are independent, and replace only their equivalent default windows, so you can use only what you like and ignore the rest with, I hope, no problems.
No full screenshots yet as I was foolish and forgot to take them prior to the beta server being locked for the release
, however if you've downloaded NewWorld before you'll have a pretty good idea of what to expect (the player window is the only one with a significant change to it really), and if you haven't then the old version screenies (in the Complete Sets, Minimalist section of Downloads) should give you a feel for the UI.
Go here to download the new NewWorld interface.