As I understand it, the FreeFlow Core Manage Color Node will honor incoming objects tagged with color profiles. That being the case, one can choose to convert the RGB objects tagged with color profiles to an industry standard CMYK profile, such as GRACoL. For RGB objects that are not tagged with color profiles, one could make a huge assumption about commonly used RGB color profiles for capturing images and start with sRGB as your RGB Source Profile, and set that as the default in the Manage Color Node... again using GRACoL as the Destination Profile. By doing this, the RGB conversion will be to a common CMYK space. Then, at the output device, GRACoL should be chosen as the CMYK Source Profile along with the output devices' Destination Profile (preferably one specific to the device) to get accurate color rendition. I have attached an image of the Manage Color Node settings that reflect what I have described. Please Note: The drawback of converting the RGB objects to an industry standard CMYK colorspace is that you could have achieved better color by converting RGB objects directly to the output devices' color space, which could be larger than the industry standard you are targeting.
