Cool idea, be nice to have some personalised banners on your claim.
The way I see it, you could have something like the Wooden Sign, Town Bell, Lamp Post, Blazing Brazier, and Stake Claim having options. Maybe for the Town Bell, for example, it could be upgraded to a Bell Tower with a colour flag/banner added.
The Wooden Sign could have colour tassles.
Lamp Post, a coloured light source.
Town Bell, a small tower building or town square thingy.
Blazing Brazier, add a dye to the coal before refueling. May give off coloured smoke?
Stake Claim, a custom plaque you can purchase in Boston showing your heraldry with a flag on top.
Alot of dyes come from various sources, plants (roots, berries, bark, leaves, and wood (ie. Logwood) , fungi, and lichens: Woad, indigo, saffron, madder), minerals (Tyrian Purple from a seashell, Kermes (red from an insect) or cochineal (crimson red or Carmine) , Salt (Potash) + pigments via precipitated method (bioling pot on a campfire?)) and animals.
For creating patterns on clothing, rugs etc, Resist Dyeing used wax as well as weaving on a loom.
Dyes could use something like the tanning tub, but you add a pigment plus the item to be coloured, say leather.
You could even have a stovetop, like the baker's oven, but you select a pot it opens the item slots while in you inventory, then right click it onto the stove to start the process. But I like the idea of boiling wool cloth in a cauldron
Could this all lead to something like alchemy skill as well?
Alchemy>Potion>>Dye pigment
Alchemy>Dyeing Tub>>Dye pigment
Alchemy>Mortar and Pestle>>Niter or Nitre (found in desert arid biome) >>Fertiliser
Alchemy>Mortar and Pestle>>Serpentine>>Black Powder
Alchemy>Mortar and Pestle>>Corning>>Gunpowder
I think this would work well into the Salt, Mercury, Sulphur and Lead component system quite well