Board Thread:Support Requests - Designing Your Wiki/@comment-33708304-20190807071605/@comment-168424-20190808235928

I've actually made a bunch of backgrounds and height does matter and no the help pages don't talk about it.

There is a setting that will make background "tile" which causes it to repeat, but that can be disabled.

You can't pick any height because if the graphic is too tall, it won't compress to a small enough size to be usable. If the height is too short your background will look cut off.

You can see an example of a background I made at the Gotham wiki: https://gotham.fandom.com/wiki/File:Wiki-background

You can listen to the BS of other users, but ask them to show you a background they made so they can prove they know what they're talking about.