I have been getting some dark villagers. I didn't know that we had villagers that had dark skin. I really like it. I don't have a whole lot, but I didn't notice this until one of my villagers turned 50 and once they turn 50 I put them in white.
I haven't heard anyone say that the villagers were different races.
I asked for them for VV3 but we have it in VV2. Maybe when they turn a certain age or maybe who thier parents are is why they change.
I really like this game. Along with some of my glitches this game is fantastic. Thank You So Much.. Pretty cool!

I've seen the redhead with a ponytail get a tan when she gets old.