Of course, the screen was monochrome black and white, so you’d have to print things to see them, and I’m not aware of any printer driver ever supporting it (Color QuickDraw, when it arrived, didn’t build on this, as far as I know).
Chances also are this part of the code was less well exercised than other parts. It may have been buggy.
On the plus side, colors were 32-bit (see http://mirror.informatimago.com/next/developer.apple.com/doc..., where both fgColor and bkColor are 32 bits), but as indicated in the first link, you could only record a fixed set of 8 colors in pictures.
(Links are to a 1996 book, but that info was present in the phone book edition of Inside Macintosh (https://www.folklore.org/StoryView.py?project=Macintosh&stor...), too)
We'd stepped into the future.
Maybe this is just the process used for designing the layout, which is then used to re-flow and re-print all the "fragments" so they can be remounted and photographed cleanly?
This video shows a bit of the process such as the Rubylith sheets used to create masks for each color: https://www.youtube.com/watch?v=fxddg3dNKgw
For newspapers, even in late 90's a lot of them were just in B/W.