Most — all? — of these patterns come from the obsession with Tailwind that swept over the frontend in the last few years. Composable CSS classes also seem like they’d be easier for LLMs to out together.

I’m not sure we can tell what AI design looks like, Stitch and a number of other tools I’ve tried produce inconsistent, wild results. The common theme is that they’ll all look like Tailwind-style components if not given any other steering.