I've attached a screenshot with PhpStorm and RubyMine side by side to show you what I'm seeing.
As you can see, the menus in RubyMine don't look like the ones in PhpStorm. The menus in PhpStorm are nice, the size and color looks just right, what's not quite the case in RubyMine. In the other hand, the font on the main window on RubyMine seems to have some anti-aliasing that PhpStorm don't.
I'm using Ubuntu 11.04 and have Tahoma font installed since it appears that this is the font used by default on the main window of both.
Anyway, I'm curious about the diferences, and was wondering if has a way to get the menus in RubyMine to look like the ones in PhpStorm.