Wrong interpretation of Adobe RGB colorspace

[auroraanna]

when opening the same jpeg image taken on a dedicated camera in the Adobe RGB colorspace in pqiv and gimp side by side, i can tell by that the colors look noticeably better in gimp than in pqiv. i assume gimp is right here because it asked me whether to convert the colors from Adobe RGB to sRGB or not so it knows about the colorspace and probably how to correctly display images with it.

this begs the questions whether pqiv actually doesn't properly handle colorspaces at all and just thinks that all images are sRGB.

this is not just an issue with dedicated cameras either. my phone's camera can take image in the P3 colorspace.

[phillipberndt]

See #235