I work in an office that doesn't have a dress code (tech field so very casual environment). Most people wear a mix of jeans and plain t-shirts, polos, hoodies with the company logo on it, sweaters etc. All in fairly neutral colours.
We recently had a new transfer to my department. She seems nice, very carefree, and she's good at her job. Today though, she came in with a bright rainbow, tie-dyed hoodie from a popular movie. It's not subtle at all and the quote from the movie is clearly printed on the front. It really stands out! Yes, I will mind my own business and not say a word but AIBU to think this is just really unprofessional?