That’s a great outcome for 2 hours.
If you’re willing to share, what was your rough workflow/prompt sequence (project overview → reproduce → propose patch → add tests → iterate)?
I tried to focus on staying on the subject. For example when I wanted to embed the themes to create a theme switcher ad-hoc and that was done, it could easily generate some new themes for me without any issue at all.
After every edit, I did a `git diff`, modified if needed (using vim), then ran the program and tested it out.
My experience is that it's always easier to fix things fast/correct if you already know the codebase and can give hints to the agent.