Someone motivated could build an implementation that uses Direct2D underneath. I think MS has one already. There are provisions in the proposal to expose handle

Someone motivated could build an implementation that uses Direct2D underneath. I think MS has one already. There are provisions in the proposal to expose handles to the underlying graphics systems, for example if you want to render text with DirectWrite (or Pango/Harfbuzz if you're using a Cairo-based implementation). Of course without the appropriate ifdefs this would make your code non-portable at that point. But yeah, as much as I would love to have an out of the box cross platform (2d) graphics library, I worry that by standardizing it, it'll be susceptible to being left behind very soon. Not even mentioning that there is so much stuff 'missing' in the current proposal - like what other color spaces? Image formats? I'd much rather have a graphics library in Boost that can evolve over time, and for people to stop complaining about / shitting on Boost; and maybe a way to have Boost packages work with a package manager, in a way so that you can pick and choose the components you need.