hello, game developers: I think there was a software tool floating around a while ago to help generate Steam image assets, like capsules. I'm trying to find it! Can anyone help please 🥺🙏

hello, game developers: I think there was a software tool floating around a while ago to help generate Steam image assets, like capsules. I'm trying to find it! Can anyone help please 🥺🙏
There's a link in this chost to a Steam course (free) that covers capsules. I'm not sure that it's the exact info being looked for, but I hope it helps!
https://cohost.org/ctmatthews/post/4764821-the-game-development#comments