That's an interesting point. As an app developer myself (so maybe not the target audience) I'd love to be able to change some aspects of it, even if it made things look "bad" as it would be a part of the fun/identity of the app. I'm not asking to adjust layout per-se (as that's more complex), but simply to manipulate fonts/colours etc. would be quite fun :)

Anyways, glad it's on the roadmap! I'll keep an eye on it.