I went back to when we first learned about the party in the late-June/early-July posts and it was described back then as a "masquerade party." Interestingly we've never seen any photos of anyone in masks - but that may not mean anything because we've barely seen any photos at all.
But if it is a masquerade, that could explain why the actors in the KLS book photos aren't dressed in costumes.
65 days 2 hours 26 minutes 58 seconds until the day the Depp/Burton Dark Shadows is released(ET)!!