[scribus] ICC profiles for CMYK printing.

[Peter Nermander]

> When I export to pdf there is a color tab but this seems limited
> to RGB Profiles. Since I am printing to CMYK this seems odd.
> What purpose does this tab have in the usual CMYK workflow? Is it
> only useful in web workflows?

They are used to tell Scribus which color space to use for solid
colors and images that don't have an embedded profil.

For any color conversion you need to know both the source and the
target color space.

/Peter