Apple developed the original 1.0 version of ColorSync as a Mac-only architecture, which made it into an operating system release in 1993.
In the same year, Apple co-founded the International Color Consortium (ICC) to develop a cross-platform profile format which became part of ColorSync 2.0.
The same CMM was used in Microsoft Windows 2000 and XP under the rubric of "Image Color Management" (ICM)[citation needed].
To deal with these issues, ColorSync provides several different methods of doing color matching.
All image input and output devices (scanners, printers, displays) have to be characterized by providing an ICC profile that defines how their color information is to be interpreted relative to this reference color space.
The Intermediate Transform section allows adjustment of brightness, tint, hue, saturation, bilevel (high pass filter) or profile assignment, to either grayscale, RGB or CMYK, or all data in the file.