[scribus] RGB to CMYK not using ICC profile for R=G=B colors

[Peter Nermander]

> from a document I create.  I can do this with Matlab using (CMYK) TIFFs,
> but it is tedious to design my document that way, so I wanted to do it with
> Scribus.  (I can also enforce TVI differences by modifying the ICC
> profile's output curves.)

You do know that Scribus uses LittleCMS for the color management?

So I guess asking the developers of LittleCMS would be a better way to
get the answers you need.

/Peter