Hmm, maybe your Chromebook updated?
AFAIK it's still on dark mode but I'm not at my Chromebook rn
Oh. Well, I don't know then. 
If the browser dark mode is enabled, then your pfp is a white outline, but if the browser dark mode is off, and the snap forum dark theme is on, your pfp is red.
Yes. And now it'll be different since Halloween is inching closer... 