It strikes me that given what the save-the-date magnets and invitations looked like, some folk might wonder about correct attire for the wedding might be. The answer is MODERN; this is not a medieval or “in-garb” wedding. The bride will be in a lovely modern dress by Alfred Angelo and the groom (and groomsmen) will be in tuxedos.
For guests, I would suggest “coat and tie” for men and whatever the equivalent attire for ladies would be….
Looking forward to seeing everyone!!
— Scott