Theme Nights

[cruisin' soon]

I couldn't find any information on what (if any) theme nights we would have on our cruise so I messaged Royal Caribbean.  After checking with our ship, they told me we would have (in addition to the 2 formal nights), a RED attire night and a White Caribbean night.  Has anyone who cruised with these theme nights tell me more about them?  Do people dress up for these?  Obviously I can figure out the RED night (unless it's not obvious??) 😊  But what is "white caribbean"?  I've heard of white night and I've heard of caribbean night but both??

Thanks!