Well, now I'm back on my original device (laptop), and I see the color too. Maybe it was legit white there for a bit, like a partial file upload that somehow finished?
Surely that's it. All the other comments, all the upvotes for my comment, yes, all the evidence points to that. Indeed. Surely. Indubitably.
... and yet. I prefer the alternative facts explanation that I am simply a crazy person:-P.