I was implementing this yesterday and discovered there is absolutely no way to customise the style / layout of the captcha. You either use the light theme or the dark theme and that's it, and it's inside an iframe so you can't manually hack the css.
The old version used to be customisable so I really hope Google adds the ability to customise this soon.
Another trivial but important oversight: the captcha has a background color of f9f9f9 but the fallback captcha has a background color of ffffff. So even if you try and style around it unless you manually detect what kind of captcha is showing and change the background color on the fly one of them is going to look off.
The old version used to be customisable so I really hope Google adds the ability to customise this soon.
Another trivial but important oversight: the captcha has a background color of f9f9f9 but the fallback captcha has a background color of ffffff. So even if you try and style around it unless you manually detect what kind of captcha is showing and change the background color on the fly one of them is going to look off.