You can see on attached images some issues with yellow tint. I only saw a yellow tint on left bottom corner. It is important to point out that yellow effect is much more obvious on photos than for eyes, however, it doesn't bother me at all. Maybe If I would be a professional photographer then I could have some complains, but in my case this is not an issue. Answering on your question, I never noticed this in daily use and even after revealing this yellow tint issue in tests it doesn't bother me in my daily tasks. So, the bottom line is if you are not professional photo\video editor and are not able to notice it in daily use and never noticed it before - just relax and enjoy your rMBP. IMO
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[url=http://s21.postimg.org/4tt9tgpef/photo_2.jpg]Image[/url]
If yellow issue will begin to bother me I swap it out (or fix) until warranty ends.
Looks better then mine