I noticed that some of the usernames, in the Board Statistics are colored, while most are black, why is that?

I guess it's because of the character's race.

Yes, that's right Levi, and the majority of the people here are Hylian, and their color is black.

So that explains your question, Shrale.

Also, to add to that: Hylians and terminians are both black, so that there's no further questions about that.

Thanks, I was just curious, but it does make sense.