Printed book recipe should be changed to be a book + printed page(s). I couldn't figure out how to do this.
When using the coloring disk recipes, sometimes there is no output. This feels like a bug that is out of our control.
It would be great if disks could be recolored in an assembler, but this isn't possible as NBT data needs to be moved from the input disk to the output disk, which is only possible in shapeless crafting.
Some notes/TODOs: