Mana Curve Missing While Checking a Deck

Maybe not a good title, but a good request. Let's say I wanted to check a deck. On Hearthpwn, at first sight, I saw it. However, at OutOfCards, there is none of it. Could you devs/staff add it? As a suggestion, you can add under the card-list.

If this request was mentioned before, and you devs/staff are working on it, please disregard my request because I couldn't find any topic regarding this request.