I was always afraid to say it out loud, but look of text editor really matters to me. That's why I can't return to Sublime, because Atom got me used so much to that Material + One Dark combo that I can't go anywhere else now. My Vim config got quiet big over the years so now it looks really really nice, and uniform.

I think, because I spend a lot of time staring at text editor/terminal I really want it to look satisfying and pleasant to my eye. It is not main thing that decides, but definitely is up there.

I would say that Code looks "unlike Sublime Text", not ugly. But it was jarring the first time I opened it. Half an hour later though, I was fine.

Takes about 5 seconds to install a theme to your liking if you don't like the default one. I happen to dig it, personally.