Sorry for another basic question, but I did search and couldn't find it (I guess I'm using the wrong terminology).
How to I change the appearance of the grey box that surrounds my layout? Nothing fancy, I'd just like it to not be there, and from looking at other people's games, I see it's possible.
Also, if I want to change the background surrounding the layout from the standard black, can I just edit the index file after exporting, in the same way I'd edit the background in any other html page, or will that break stuff?
Sorry again for nooby questions, and thanks in advance for any help.