I got like 1BP |: But yeah you get something.
Yes, each person has their own theme if they have one outside of the PWT. For the rival, it had his theme. For Cheren, it had his personal gym battle theme. For SwirlyCurl, he had his theme as well, I think. I love the background for the battle too, all the lights and stuff.
I wonder if Blue gets his Champion theme, or just the generic Kanto mix.