ICC Profile - an international standard for describing color transformations.  These profiles may also use the ICM name and file extension.

Encrypted ICC - you can use an Hex editor to look at the 1st 4 bytes of the ICC.  If the string looks like the following, the ICC is encrypted:  0x45434646

Specific color information for each media, ink, resolution, and dot pattern combination.

ICR (Integrated Color Removal) - See GCR.

See Color Profile.

See View Media Library.

See ICC.