"It ended up sparking a lot of conversation—which is good. Fashion is so personal," the New York City designer said.

The North American Vexillological Association — it brands itself as the world’s largest club for flag enthusiasts — has settled on five basic rules for good flag design. They even distilled the rules ...

Colorado’s “purple mountain majesties” didn’t make the cut, apparently. But here’s why red, white, blue and gold did.