Traders' "craft" price

What is this suggestion related to (eg. Website / Launcher / The game itself / etc. ): Traders’ craft price

Description: I’m not sure, but I think when I trade crafting materials for traders’ items, the UI shows that the trade itself costs nothing, but then the trader actually take some of your money. If I’m not mistaken, the Hodd shield costs ~1200r. to trade. It is like additional fee. But the trade UI itself doesn’t show anything about that fee.
My suggestion is to display the fee on the UI.

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Probably I got disoriented by the price of the cosmetics craft. I don’t know if it costs nothing indeed, though.

It seems like everything works well. Can be closed. Thanks