You are probably right about that. I see a possibility in something, then I can later see flaws.
You are a good 'detail' or investigator. It bothered me because I had read about the sparkles, and heard nothing since in the trial about them. Your comment was good, you saw something that could have been a clue that others didn't.
It may still be. But, in the "REASONABLE" category, I could see why they would be there, and not only might not mean anything, but would be darn hard to prove anything about, even if they did.
So, they could be a clue, but the only way they will be able to prove anything is if that OUTFIT is not in the closet (or drawer). That is where my mind has settled on the 'sparkles'.