[TazeTSchnitzel]

I don't think they'll have copyright issues, it'd probably be considered fair use.

As for the McDonalds logo, I suspect the turquoise is because that's the current background colour of mcdonalds.com

[mikepurvis]

Or because it's from here: https://twitter.com/mcdonalds

[TazeTSchnitzel]

Ah, that makes more sense. It was mentioned below that it seems to be using Twitter.