Hi!
I understand that there are complexities about this, but many of us will always be forced to do CSS workarounds for it.
Especially with hero images, they often don’t fit for mobile and they are unnecessarily large. I usually target the background image with a media query. But that didn’t worked with layouts since they required dynamic content in CSS. This is now an option, that’s great.
Show/hide containers is not ideal, since it effectively loads both images on mobile.
Having a responsive option on the “Image” label and possibly on the entire group would be a huge thing.
Thank you!