http://image.prntscr.com/image/6fb0d1e2309b4287817e6f01372916f4.jpeg
?? What are you trying to show with that screenshot?
I think @nwgat is refering to something related with the font aliasing rendering of the menu but I miss the point. I think it’s good enough, but that’s me. I dont’t care very much about visual pretty things, only the pratical ones. 
look at user and interface, they look awful same does redo http://image.prntscr.com/image/1dd24d8bcb00489a865f6ba7eb864844.jpeg
17.01.02 on Windows 10 with a 1920x1200 resolution
That is the way disabled items look on the dark theme - nothing to do with font rendering. Don’t use the dark theme if it bothers you that much.