Based on this StackOverflow post: <https://stackoverflow.com/questions/35596346/ghostscript-convert-pdf-into-cmyk-preserving-pure-black-for-text>

Created an ICC profile for images (RGB) and another one for text and
graphics (black) zith the tool collink (from ArgyllCMS)

The new icc profiles are on the repo and how to address them is in the
file `control.txt`.

Replacing "convert" with "magick" for better compatibility with macos and windows versions of image magick. 

PDF without or with overprint, with no washed colors as we've seen in
Médor 3.
Thanks to Lionel Maes (La Villa Hermosa) to have debugged this together!

ça merge ou quoi?

colorSeparation.sh directly.

Anyways, we consult the page locally so we don't need it so much.

Some more styling on top of the cake.

There seems to be a bug with Lazy Load, letting you believe your black
text is in color but it is!

    ./rgb2cmyk.sh input.pdf

This will convert a PDF to input-cmyk.pdf

    ./colorSeparation.sh input-cmyk.pdf

This makes black and white images of each CMYK plates and makes a small
HTML page to preview the plates.