And then you go to the Features page, with a box on the right clearly listing "GNU/Linux and Unix / Windows / Mac OS X" as supported plartforms :) With "Native look and feel" in the box just below.
I disagree with the current GTK direction, but it's not my project and I accept that. If the focus of the project has changed, update the website(s) and documentation.
Also the HTTPS stuff pointed out by distances.