Hello Gwenview 15.12.1 _X11_PROFILE atom set and used correctly by gwenview for my JPEG images. Download this image, it's in webp format: https://plus.google.com/+JarrodCastaing/posts/ZmGMTjciN9W Open in Gwenview. The image has wrong colors because the monitor color profile which is specified by _X11_PROFILE is not applied. Loading a JPEG image makes use of the monitor color profile. If the image does not contain a color profile, it is OK to assume that it's in sRGB, but either way the monitor profile should still be used. Reproducible: Always