Currently, for images in CMYK color space, any image transformation leads to converting CMYK to RGB which might cause color distortion. We’re working on a set of operations that allows you to control this process and use embedded profiles to properly convert color space or preserve CMYK on output. These operations will be available soon. Stay tuned.
Recently, we added color profile management operations that allow you to use embedded color profiles to convert CMYK to sRGB or keep the profile after transformation. Here you can find more information on the feature
We’d appreciate any feedback you can give us on this feature