If you're on of the people like myself who purchased the second edition printing of 7 Wonders and have the mis-colored cards then you're in luck...maybe.

Asmodee is offering a full replacement deck of Age 3 cards however you need to get them from the store you bought the game at. For someone like me who ordered online I may not be able to do that as a lot of times online retailers don't support this. I would check with your local store if you want these new cards.

Read more here.