People who've bought a title on Steam don't get to see the same icons in their Library as those who've bought the same title in the Oculus Store. The (Beta) Oculus 1.17 app does create icons but these don't look good at all. Particularly the landscape icons look bad because they're just black with a tiny square picture in the middle. It's very easy to add the original Oculus icons to Steam titles though. Someone who's bought the title in the Oculus Store can go to their Oculus application folder and then open Software\StoreAssets which contains folders for every game with all the icons inside. Zip the folder you want to share, upload it somewhere (e.g. Dropbox) and post the share link here in this thread.