Rachael in Gameland: Pokemon Chapter 1 Page 29
I've tried to do speech bubbles like that blend before, but without the gradient. Now I have found the perfect way of doing it. It is such an improvement, I may have to hunt down strips in previous projects where I did it the old, broken way and fix em.

I think it's safe to say that while other adults/characters of the Pokemon universe I'm borrowing may indeed have their little quirks, only Professor Oak will be this crazy. I don't really know who I'm basing him on, but Oak always seemed  a little off to me and I tried to incorporate that the best I can.