Having used it myself, I see the tell-tale signs of Claude using the /frontend-design skill. Good work! I haven't yet had it give me something I actually like, but this is good. Also very clever idea! I approve :-)
Suggestion though: The text is really small and impossible to read at regular zoom. I had to zoom it to 200% to be able to read it. I'd suggest increasing the default text size
I've noticed that Claude always defaults to really small text. They need to train readability into it.