screen 03
here the printer profile is set to the document profil (ProPhoto RGB). I believe this means there is no color conversion at this point ?
Yes, "printer profile"="document profile" means no color management by InDesign.
screen 04
its in french. Concordance des couleurs = Color Matching
"Par l'imprimante" (by printer) is selected. So I believe here again there is no color conversion ?
Yes, this is correct - no color management done by OS X ColorSync.
screen 05
Media Type : Epson Inkjet Paper (printfab icc profil for corresponding epson paper)
here is the first part for the color conversion settings
screen 06
Intent : Perception (or one of the other option depending on the source image)
here is the second part for the color conversion settings
You are right:
The color management is done by PrintFab.
"Color Space" is the input color space ("ProPhoto RGB").
"Media Type" selects the printer color profile ("Epson Inkjet Paper").
"Intent" is the rendering intent ("Perception").
"Reference Light", "Gamut" and "Color/Grey Tone" are optional profile adjustments that are currently set to default values.