Black and white and brown and pink

Ds was thinking today about the fact that I. will be the only brown person (so far) in our family. He loves that she will be brown. He thinks brown is beautiful. But he thinks it would have been easier for her if Daddy had been born brown, so we'd have two browns and two "white" (he says hesitantly, trying on someone else's word, before replacing it with the more intuitive "pink") people in our family.
It's been so interesting to see his thoughts about race, and what it means for I., evolve.