Justified: Daphne's signet ring identifies her as the princess, and she's been taught to always keep it on her. Her parents also taught her to always dress as befitting her station.
Inverted: Princess Buttercup absolutely refuses to wear any of the royal finery she's expected to wear, to the point where they can barely convince her to accept a bare circlet in lieu of some fancy tiara.
Subverted: The court is told to expect Princess Buttercup in her finest Pimped Out Dress, and the court anxiously awaits her arrival, only to see her burst into the room wearing a ripped T-shirt and loose jeans.
Double Subverted: It wasn't really Princess Buttercup after all, just a peasant who snuck past security. As the peasant is dragged out, the real Princess comes in, naturally decked out.
Parodied: Chiffon's attire is so over-the-top and elaborate that you can't even see her inside of it for all the ruffles and whatnot.
Deconstructed: Princess Buttercup has difficulty breathing due to her tight corset and trips up on the long train to her dress. She hates wearing the clothes because they're uncomfortable and only get in the way, but because of her position she has no choice.
Reconstructed: Princess Buttercup hires an inventor who comes up with a new type of corset that's far more comfortable, and her tailor is able to modify her dresses so as not to trip her up. She also realizes that she doesn't have to be lavishly decked out in EVERY appearance, and so resolves to wear more mundane but still nice looking clothing to lesser functions, only wearing the Pimped Out Dress for official functions.
Averted: Royalty wears fancy clothing when appropriate, such as at state functions, and dress more reasonably at other times.
Enforced: For simplicity's sake, the series uses a Limited Wardrobe, but also wants to establish the royal characters' wealth with their appearance.
Lampshaded: "Pardon me, Princess, but would it not be easier to sleep without the crown?"
Invoked: Princess Buttercup ensures that no one ever sees her wearing anything but her Requisite Royal Regalia, even though it's not the only thing she wears.
Exploited: Emperor Evulz has his agents stir up dissent in other kingdoms by pointing out the ruling family's Conspicuous Consumption.
Defied: The series goes out of its way to depict all royal characters wearing more normal clothes at regular intervals, specifically to avoid the implication that it's all they wear.
Discussed: "Boy, Madam Princess really goes out of her way to make sure she's never seen poorly dressed, doesn't she?"
Conversed: "Are those two princes really going to have a fight to the death in the full crown and cape? Seems like they should really be wearing something a little less obstructive for that."
Played For Laughs: Chiffon's insanely poofy dresses turn her into The Klutz who's always tripping over her own skirt and ending up on her back like an ungainly pink turtle.
Played For Drama: Chiffon's impractical trappings slow her down when her kingdom is attacked, and also mark her as an obvious target for the invaders' forces.
