BTW. if an image has no exif tag or embedded profile, Q will default to sRGB but you can override that with a filter.
The only other thing to add is the often missed Checkmark in HONOR EXIF color space tags when no embedded profile exisits.
If you have a check in there, and an image with a tagged color space, Qimage will open it in that color space.
Furthermore, above that area in the dialogue box, there's another area for camera input color space; designed to have Qimage check for tagged color space from your camera shots.
If I shoot in JPG mode, I usually set the color to the adobe setting in my camera.
By setting that up in that box, Qimage will assign the Adobe color space to any JPG it sees from my camera. If I shut it off in Qimage, the Qimage will default to unknown and assign sRGB.
Of course, shooting in RAW mode, there is no assigned color space at the shooting time, and Qimage will either assign sRGB, Adobe RGB, or your camera Raw profile as the color space depending on the settings in Options Raw.
Fred