What do teachers wear to professional development trainings?

Do you dress like you would for school or is it more of a dress down atmosphere. This is my first training so I would appreciate any input! 🙂

https://revision3.com/sidescrollers/teacher-of-the-year

In some schools, teachers dress pretty informally to teach! In the training sessions I run, teachers generally dress informally- as in jeans, casual shirts- but not sloppily. It depends who's going to be there. If administrators are going to be there, you might want to stick to what you wear to school.