Add a new rule to the ruleset, entitled Guilders:

Each Monk has an quantity of Guilders, which is a non-negative integer tracked in the Mosaic page of the wiki and which defaults to 0.

Guilders can be used to buy tools, materials and dyes. At any time, a Monk who is not holding a tool may spend five times the turn cost of any tool in Guilders to gain that tool.

Add the following as new Tile Actions:

* Change the Color of any Tile to match the Color of a pigment that is available. Spend the relevant Guilder cost to use that pigment
* Develop a new market: make a rumoured pigment available, with a Guilder cost of 10
* Develop an existing market: reduce the Guilder cost of an available pigment by 1, to a minumum of 1

In the rule The Mosaic, change the bullet point that starts “Its Color, which can be” to read “Its Color, which can be any of the color names listed in the rule Pigments and which defaults to white. A tile may be described by its color (i.e. a tile whose color is white may be referred to as a white Tile)”

Add a new rule to the ruleset, entitled Pigments:

A tile may only have a colour for which the pigment is available. Each Pigment has a Guilder cost in brackets after its name. Some pigments are rumoured; these may not be used for anything until they have become available.

The following pigments are available: white (10), red (5), blue (5), gold (5), green (5).

The following pigments are rumoured: purple, pink, cyan, orange, lime, black, brown, silver