Yep, the main use case I imagine for something like this would be to show a blurred/tastefully-rendered <10 KB SVG _instead_ of a multi-megabyte hero JPG that s

Yep, the main use case I imagine for something like this would be to show a blurred/tastefully-rendered <10 KB SVG _instead_ of a multi-megabyte hero JPG that still ends up looking horrible on 4K screens.