This might be out of scope of how the engine is currently designed (with src folder not visible in assets panel), but it would be handy to have a small PICO8 like text editor inside the engine to either write code or do quick changes without switching to a full blown code editor like Atom.

As much as I like the idea of a all-in-one editor for game development, I think implementing a decent text editor would be too much work. I'm keeping this idea in mind, but with a very low priority.