https://bugs.kde.org/show_bug.cgi?id=3D386396 --- Comment #1 from Elle Stone --- Hmm, digiKam terminal output just printed a useless libpng warning that I've never seen before: digikam.dimg: "/hdd/edit/edit/archiveprints/20080416 pond leaves/586-587.pn= g"=20 : PNG file identified libpng warning: iCCP: profile 'ICC profile': 0h: PCS illuminant is not D50 The profile in question is an old Kodak Romm profile directly from the old Kodak website. Apparently libpng is now checking profile illuminant values,= and complaining about the following discrepancy (using iccToXml to print out the profile contents: What is in the old Kodak profile: What is in most profile's illuminant field (until iccMAX comes along and ma= kes it OK to use other illuminants): This libpg warning is useless. Users won't know what to do with it. The pro= file is fine just as it is. Yes, the D50 illuminant values are slightly off from what is normally found in V2 and V4 ICC profiles. No, this small difference won't make a bit of practical difference to the user, especially in a V4 CMM such as LCMS2 provides. All this warning does is confuse the user (if they = see it) and waste processing time to detect and print. AFAIK no other file format prints such warnings. As the warnings are about things that make no difference whatsoever to users, it would be good to dis= able the libpng warnings to keep them from being printed to the terminal, where = they might confuse users. In fact they do confuse users, as a search on the inte= rnet will quickly show. --=20 You are receiving this mail because: You are watching all bug changes.=