As a niche villager and modern crafting bench enjoyer, I would really enjoy a bench which makes creating dyes a little bit easier with the wider variety you provided.

Perhaps a Dye Vat which takes all dyes as a material and would be an interesting way to bring a little parity with the Loom, Cartography table, and other related profession benches.

As a result, you could implement a Dye Merchant as a profession, providing an alternate source/introduction to the new dyes?