Change background colours of (external) request forms

Hi team,

It would be great if we'd have more control over the design of request forms, for example, background colours. 

This is especially the case for external embedded request forms. We have embedded an external request form on a page on our website that follows a darker color-scheme, meaning the bright white background of the request form contrasts quite highly with it and I've been asked by our designers if the background color is something we can change/set. 

Since we can't change it, I thought it would be good to still pass this on as product feedback! In that vein, if we had more design control in terms of page headers/section headers/questions/other text (descriptions), that would be swell! That way, we can try to match our own branding, especially when it comes to embedding external forms. 

Thanks :)