The thing that puzzles me is that the image opens in GIMP showing the apple (incorrectly, apparently). I would have thought that GIMP would be entirely aware of

The thing that puzzles me is that the image opens in GIMP showing the apple (incorrectly, apparently). I would have thought that GIMP would be entirely aware of embedded color/gamma information like this. (It certainly makes enough of a fuss about color profiles practically every time I open an image!) Is the gamma somehow encoded in a less-standard way, or is GIMP just less clever than I thought? (My copy of GIMP is a bit outdated, but that shouldn't be a big deal for a basic feature like this, right?)