I've noticed as a mobile user (jerboa, liftoff etc) when searching for and using communities in this instance they don't have an image representing the community like most others do, just a blank space. I believe adding these would help with discoverability/readability, assuming its not a problem just on my end.
on the panel on the right, under the community name, there's an image that looks like a pencil and paper (kind of, its a little vague), that lets you edit the community, including uploading an icon and banner