When viewing a [image, video, plugin] directly, these special documents should make use of HiDPI mode when available. EG, on a retina display these would normally be pixel-doubled to appear at the same size (in content, for compatibility). But when viewing them directly, we should show them as crisp as possible. We should also consider, as part of this work, if we should retain some way of showing small images at a pixel-doubled (or more) size. EG: Current: if (media fits in window w/o scrolling) show media else show scaled-down media w/ click to zoom 1:1 Proposed: // using physical pixel sizes if (media fits in window w/o scrolling) show media scaled-up to window size w/ click to shrink to 1:1 else show media scaled-down to window size w/ click to zoom to 1:1 Alternatively we could consider some kind of "Tools" menu to control this and other modes (eg transparent backgrounds ;).

Does a plugin have a way to 'notify' the browser that it can actually handle rendering in HiDPI mode? Cheers, Jonathan