I don’t begrudge Boba wanting a different color jumpsuit and I think the black works fine. The choice of Tuskens also wearing black feels like it’s simply the go-to color for new and cool. It’s a nitpick but creatively I would have liked to see something different. What I haven’t thought until now is that he changes to a black jumpsuit because of his time with these Tuskens, so this is a way to explain why he makes that choice. Whether this is meaningfully symbolic or needless explanation for a minor cosmetic choice 🤷