Ink vs. Dye

Here's a stupid question, but...I've read unofficial sites and forums, and have seen references to vials of dye for color change and vials of ink for monk crafting. Is there a difference between the two or are they basically the same thing?

Totally different items.

Dye is to change the color of your armor/weapon.

Ink is to craft monk tattoos.

i have never seen ink before, only dye, they might be lying those twits.
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nvm then

That's because Ink needs to be crafted, it doesn't just drop.

Ink is also used to make Necromancer Scar Pattern Armour.

Yeah, there's a 'materials crafter' or 'materials trader' (can't remember which) just outside of the Abbey, in Old Ascalon (Post-searing, obviously) who crafts rare crafting materials for you. I'm pretty sure he can craft ink, and I know he can craft parchment paper (from wood planks) so he'd be the guy to visit in order to get tattoo/scar pattern crafting items.

Thanks for the info. I'll check out the crafter