Quote Originally Posted by Lemuria View Post
At this point, I don't think there's a single crafted dye which isn't available at an NPC.
You think wrongly. Go through your list of craftable dyes, any with a "Shop sale price: none" are only craftable. By my count there are 20. There are another 5 that are "Shop sale price: 216 (restricted)" meanning that they come from tribal vendors. None come from the dyemongers.

But yes, more colors would be nice.