It’s been a confusing few months for anyone obliged to write about Kate Middleton ’s wardrobe for a living. First, there was a not-quite announcement, through a source quoted in The Times, that the Palace would no longer be issuing details on the Princess of Wales’s outfits.

But fashion is one thing, and style is another, and Kate Middleton fans are swooning over her latest sartorial choice that flies in the face of one of fashion’s biggest rules. 🎬 SIGN UP for Parade's Daily newsletter to get the latest pop culture news & celebrity interviews delivered right to your inbox 🎬 On March 15,

There are a few fashion rules that pretty much everybody can recite verbatim. No white after Labor Day. Always match your belt with your bag. And, of course, never, ever mix navy and black. Although these rules may sometimes make sense,