Im in the process of writing a script that converts picks to BW and relinks them. I seem to be having problem getting the correct syntax to find all the text boxes and change them to black (except for any font with a fill color of paper.
I've been experimenting just to get one of them to change, once I get one the rest should be easy
tellapplication "Adobe InDesign CS6"
--set allTextBoxes to text frames of page 1
--repeat with textboxnum from 1 to count allTextBoxes