Color of Raid Boss Egg

I just noticed, from looking at various update pics, that the color(s) of the raid boss egg seem to be matching the mon’s candy colors. For instance, Gangar raid boss, featured in the update notes, pops out of a purple egg, the same color as its candy primary color… This could be a way to guess (or at least narrow down the possible choices of) the raid boss before it hatches…

What do you think?

Ummm… never mind, after looking at leaked videos, my egg color theory does not hold. Sorry about that.