It doesn’t say anywhere in the Torah that you’re not allowed to wear “yellow shoes”. Or EXACTLY how any top should fit. Tznius to me, is common sense. What is the purpose of tznius? Not to attract strange men. Before buying/wearing something, I ask myself, will this attract any man’s att. or not?
BTW, are you in the eleventh grade? If you are, I respect you for your insight. I wasn’t too sensitive last year:(
Oh, and no, I don’t think yellow shoes are very tznius in my community (although there’ll always be some who like funky stuff..).