When placing a new Market Warehouse some of the production buildings show up in a highlighted dark green, and some are highlighted light green.
What does this mean?
I am guessing it has to do with which building need more carts?

Thank you!

Tax settings being displayed? (guessing a bit myself, can't really see what those are for buildings)
But normally Dark green -> people can move in and advance. Light green -> people can move in and NOT advance. (IIRC that is :D )

I am talking about production buildings.. like a carpet workshop, or a silk plantation building. When placing a new warehouse building some of those production buildings show light green, some show dark green.

Out of HD-space reason I haven't got it installed, but looking at the pic (and trying to see it ;) ), could it be, that one green is supplying buildings and the other being consumption buildings?

(And I was hoping that in the meantime somebody else might have jumped in who did pay attention to this detail ;) )

I'm not 100% sure, but I think dark green buildings are able to get resources from the market warehouse, whereas light green buildings can't take goods out of the market warehouse, because they are either to far away or don't need resources from other buildings.
The light greens buildings indicate that they are within the market warehouse to bring home the produced goods.

I thought it meant that that particular warehouse would service those production buildings in green. After it's built you can click on the building and I think it highlights buildings in green that it's servicing.