The red player has the advantage of offering their templates, while the blue player's advantage lies in choosing the color. By engaging in a trade, the blue player loses their bonus. Since the castles are random, a specific, fixed bonus could be introduced for the blue player. In other words, the blue player chooses whether to play as red or remain blue, but with money. Let's say 1500 for the color? I think we can discuss the price. There are also rematches with color changes, so this should also be taken into account.