Modal Background Colour

When testing the modal option, I noticed that whilst most of the colours were that of my theme, the modal background colour was white.

I needed to change that colour because he backgrounds across my site are various shades of grey, and the text mostly white. However, I couldn’t find an option to set the Modal Window background colour or it’s border style. I would have expected these options to be under Style > Modal Window, but there are only 3 settings there and have nothing to do with colours or borders.

Ended up achieving the look I wanted with CSS so I have no issues, but thought I would mention it here as feedback (or for someone to point out that I need to get my eyes tested lol) ??