Put the summary of the bug you're having here
What I expected to happen was...:
book and quill to need black ink
What actually happened was...:
book and quill required ink sack
Steps to Reproduce:
try and craft a book
(also being able to dye pages, and words would be cool, for maps, and different aesthetics/moods... or maybe a dyeable book mark idk)
This is most likely WAI, as you don't use black dye to write with quills, you use ink. Ink makes more sense, and is what is used IRL.