Canon FS 3.6 - Manual (Page 75)

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Other Functions
ColorGear Color Matching
Placing a check in this option turns on the ColorGear color management system.
ColorGear automatically corrects for the differences in color characteristics
between scanners, displays and printers. When set to on, this function reduces the
effort required to set the printer color balance. Turn it off when you wish to
perform the color correction with Photoshop or other image editing programs.
This option is set to on when CanoCraft FS is first installed. You can also turn it on
and off by right-clicking the settings display area.