And with an evening of prompting, I have got a complete port of the modern version of Lights Off on Android, in Java/XML, complete with responsive layout, themes, settings, animation, sound and more, using the latest iOS codebase as a reference. It matches the version on iPhone and iPad almost down to the last pixel. I haven't touched a line of code manually (except for the original Swift code), and Codex 5.3 did all the work. It completely replaces the old Android version I wrote a decade ago

It is really hard to design a beautiful modern Android app, because no two apps on the system look the same, and there are no good references from Google, at all. And if a human won't have a clue, an LLM certainly won't know what to do either. The freaking Clock and Recorder apps are the best examples I can draw from

Codex is trying its hardest, though

OK, I've done my research, I've pointed it at the APIs and styles I want, and I've painstakingly guided it through the process, so this is my best attempt at a Material Design 'settings' view for Lights Off on Android

And here are the screens in picture form. I used the recommended MDL3 Expressive styles from the design docs, I checked as many system apps as I could for reference, it uses the inherited system theme colors as appropriate, and on foldables it expands out into a navigation rail view