Application theme gallery

Hello, I’ve just twitter times ago about creating something like “application theme gallery”, that is a preconfigured empty app but with full layouting ready. You just download it and extend/modify adding your components and behaviour.
I’m really bad in page design so it’s difficult for me building a visually appealing app using only code (really I HATE this way of assembling pages) or designer (helpful but hard to get wath you want) but having a starting point (like this can be REALLY helpful.

Any chance to have this cool feature?

Thank you!