First, thank you for this awesome tool.
My complaint (which I spent 5 seconds typing after your years of work) is that the view of the file I'm editting blends too much with the tabs.
Could there be a option to color the GUI a color other than white?
Screenshots of what I mean:
http://img23.imageshack.us/img23/4851/programmersnotepad2desi.png
http://img196.imageshack.us/img196/6274/programmersnotepad2.png
(I'm now on "v2.1.2.2096", the latest version)