Add ability to use background or not when selecting a theme

[formgeist]

Great plugin, though I would like to be able to not use the background of the theme, but simply the syntax highlighting itself. I know the themes carry the background as well, but more configuration on this part, would be excellent.

Thanks again for making this useful plugin 🙌

[vieron]

Thanks, @formgeist! Definitely, something to consider. I guess we will provide more configuration options at some point. An option to add padding to the text box is also something we would like to have.