Why does the same image (e.g. the colors) look different in other viewers?

[Elk]

Why does the same image (e.g. the colors) look different in other viewers, e.g. SmartStoneViewer, HoneyView, IrfanView, etc.?

And which view / colors, etc. is the correct one?

[xnview]

Perhaps your file has a ICC profile, do you have enabled settings>General>Icc>Use icc...

[Elk]

Perhaps your file has a ICC profile

And if it had, what would it mean?

do you have enabled settings>General>Icc>Use icc...

No, not until now, now I have this:

https://i.imgur.com/tjhoLeC.png

What does it do? After activating will the display of the images be adapted to that new profile?

And if I want a "correct" (as far as possible) display, should I use that option? It says there it is slower, and it is slow enough already here.

[xnview]

if the file has an ICC profile, it must be converted to sRGB profile

[Elk]

And what does that mean?

After activating will the display of all images be adapted to that new profile? Or only when showing them full view mode?

And if I want a "correct" (as far as possible) display, should I use that option? It says there it is slower, and it is slow enough already here.

[xnview]

All images with an embedded profile will be adapted everywhere
Some others viewers use it as default

[Elk]

And if I want a "correct" (as far as possible) display, should I use that option? It says there it is slower, and it is slow enough already here.

[xnview]

And if I want a "correct" (as far as possible) display, should I use that option? It says there it is slower, and it is slow enough already here.

yes

[Elk]

Great! Thank you very much!