I'd like to use graphics that have already been developed for my SE site in promotional materials. So far, I've found a small icon at https://cdn.sstatic.net/Sites/judaism/img/icon-48.png , but I'm wondering what else exists, including larger versions of that icon or anything else. I can't browse that /img directory, so I'm wondering if someone who can could post a catalog of the standard contents of such directories.
I'm not sure what additional images are available, but you can find a larger version of that image by substituting
apple-touch-icon for the filename, e.g.:
Be sure to adhere to the trademark guidance where applicable.