Can't pinpoint this colour...

[BlackOak2]

Yes, Sweet White is just so. She also has the flaxen gene, evidenced by the coloring on her fetlocks.

I would also agree with your conclusion of Autumn Seal. I don't see much evidence of flaxen on him though. Still possible; flaxen is rather a coin flip when dealing with the other dilution colors. White mane and tail already, is it flaxen or not? It's handy when they come paired with other indicators, like the light fetlocks on Sweet White.

Thank you very much!

Good to know I'm not completely clueless when trying to figure colours out This game just has so many neat variations and aspects to think of that I almost always miss something from somewhere

Yeah... it can be like that.

But that's part of the interest and fun.