More fitting native look is planned, but in fact, currently it was considered to fix Linux (Gnome/Qt) look.
It is true that initially (several years ago) we reproduced Win2K look&feel with some "improvements". From the current perspective, it perhaps was not a good idea. There are some minor differences in XP look (U++ scrollbars look a little bit differently) as well, but this time those are much less serious than those introduced by M$ to its apps