&gt; Just look at stuff like Gimp and Inkscape - those things are atrociously bad from GUI perspective<p>GTK exists because of Gimp. Gnome came later. Sadly, the GUI of Gimp is still behind of Photoshop.<p>Gnome 2 and KDE 3 were fine, then everthing went downhill. Nowadays Ubuntu and Gnome2-fork (Mint) are okay.<p>Maybe implement a transparent theme that looks familar to Vista&#x2F;Win7 users? Most users aren&#x27;t that happy with the Win8&#x2F;10 theme, that can&#x27;t be changed.