Originally posted by Robert Vance
I believe it's all colors, although if Eric says otherwise, go with what he says.
The books don't specify one way or the other; feel free to go with whichever you prefer.
We specify white jade coinage in the art because it presents a consistent visual style that's easy to convey to artists unfamiliar with the source material without adding to the art notes complexity budget. This can be justified in-setting as the Realm having access to a surplus of white jade, whether from the Mountain Folk and/or other Blessed Isle deposits. But as noted above, the books don't specify any of this; it can be disregarded at leisure if you prefer many-colored jade currency.