https://bugs.kde.org/show_bug.cgi?id=367832

--- Comment #33 from Tyson Tan <tysont...@gmail.com> ---
Test condition: 
Default Windows 10/KDE/Gnome/Firefox, no calibration, no profile, no
configuration -- to emulate a layman user who uses a wide-gamut display but
never installed any display driver or performed any profiling.

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Images that failed the Firefox color management test:

https://www.dropbox.com/s/pf0wl0sx0m5ajnc/kigori_skye_JPG_no_save_icc_profile_FFX.jpg?dl=0
JPG
[_] Save ICC profile

https://www.dropbox.com/s/z4p61en3b84zeum/kigori_skye_PNG_default_force_sRGB_with_alpha_FFX.png?dl=0
PNG
[_] Embed sRGB profile

#########

Images that passed the Firefox color management test:

https://www.dropbox.com/s/i5rg2q7r642g33b/kigori_skye_JPG_save_icc_profile_FFO.jpg?dl=0
JPG
[+] Save ICC Profile

https://www.dropbox.com/s/ouahrqjtvlsx8as/kigori_skye_PNG_embed_sRGB_force_sRGB_with_alpha_FFO.png?dl=0
PNG
[+] Embed sRGB profile
[+] Force convert to sRGB
[+] Store alpha channel

https://www.dropbox.com/s/caql2fjdbwavit4/kigori_skye_PNG_embed_sRGB_no_alpha_FFO.png?dl=0
PNG
[+] Embed sRGB profile
[_] Force convert to sRGB
[_] Store alpha channel

https://www.dropbox.com/s/tmhuvpj86wmp1l5/kigori_skye_PNG_embed_sRGB_with_alpha_FFO.png?dl=0
PNG
[+] Embed sRGB profile
[_] Force convert to sRGB
[+] Store alpha channel

#########

Conclusion:
JPG and PNG images saved by Krita must save with embedded sRGB profile to
display properly in not-color-managed Firefox and some other apps. It's
advisable to make enable these options by default.

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BTW, Images that failed the Gwenview color management test

https://www.dropbox.com/s/ouahrqjtvlsx8as/kigori_skye_PNG_embed_sRGB_force_sRGB_with_alpha_FFO.png?dl=0
PNG
[+] Embed sRGB profile
[+] Force convert to sRGB
[+] Store alpha channel

https://www.dropbox.com/s/tmhuvpj86wmp1l5/kigori_skye_PNG_embed_sRGB_with_alpha_FFO.png?dl=0
PNG
[+] Embed sRGB profile
[_] Force convert to sRGB
[+] Store alpha channel

(Apparently Gwenview doesn't color manage images with alpha channel. I reported
a bug about it)

#########

Windows 10 1903 Photo UWP App

It doesn't do color management at all. -_-

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