Feature Req: Overlay checkout background theme override

I'd like a more opaque background opacity on the overlay checkout for my website since the "Pay in ***" and "Language" selection buttons on bottom are not that well visible on certain websites.

I myself missed them completely when testing.

An override for the bg-black/70 style would be needed since that controls opacity. Since dodo payments renderes the overlay in an iframe it cannot be changed with simple css override.