Been doing it for the past several weeks. It is no longer correct to say that LLMs can't/don't/won't exercise reasonable aesthetic judgement on the finished product. Immense progress in this area has been made recently.

If you want the model to maintain a certain look and feel, or to preserve the UX in other ways, tell it. Even if it doesn't get it 100% right today, the direction of progress is pretty clear, so you might as well get used to prompting the models accordingly.