Nah, I'm positive that faint little difference in hues is because of color coding issues, rather than any actual intended difference. Some styles do look different than the rest when using the very same color codes, and I'd say this is one of those cases. -and there's also the fact that some of the materials they've released don't quite look the same on the live server as they did on their livestreams. (I leartned that lesson the hard way with the dark shimmer). If there had been an intentional difference in base colors, it would be much more noticeable. Just look at the three figures. If the Devs had wanted us to know the colors weren't locked, they wouldn't have used white for all three. They did the same thing with the dark chroma, presenting all of them with their own same base color. Historically, when materials have been tintable, and images were released with multiple characters, those characters have displayed different base colors.