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I use backgrounds in Pharo and one of them have a wrong white balance.
You can reproduce it by opening an image morph on this image: https://github.com/jecisc/pharo-scripts/blob/777dd0601427c394832cc928120263b79093592f/SettingRessources/backgrounds/ApocalypticaWhite.jpg
Here is how I opened it:
(ImageMorph fromStream: (FileLocator preferences / 'pharo' / 'SettingRessources' / 'backgrounds' / 'ApocalypticaWhite.jpg') binaryReadStream ) openInWindow
Here is a comparison: