What to wear for rush?

[HappyGoLucky]

I was looking on the website for rush at UF and for prefs it said formal dress that you would have worn to prom or homecoming. It didn't say anything about color, but a lot of people talking about preferentials on here have said they wear black dresses and all the girls in the picture on the site are wearing black dresses. Unfortunately my dress is cream colored with black trim. It's gorgeous, but I'm worried it may be inappropriate. Any opinions?

Also, we have 2 days of casual (shorts or casual skirt) and 2 days of "dressy" (something you would wear to church). So I'm thinking for the two casual days I have these two cute skirts from American Eagle that are casual, but fun and girly and really me. Plus I feel really comfortable in them. But I'm not sure about the what you would wear to church days...that could be so many different things......suggestions would be appreciated.

I've read a lot of posts that say you wear bid day shirts on bid day, but I think I remember girls having to wear black dresses last year...has anyone else had to do that?

Sorry this is so long, just want to get some questions answered so I can go shopping (YAY for payday )