Board Thread:Support Requests - Designing Your Wiki/@comment-26525672-20191017152641

Using the Theme Designer, I can't upload a new background for my wiki. It isn't showing up in the available ones. The file is 193 KB, .jpg, called backgroundalch.jpg EDIT: Forgot the dimensions 1920 x 865

Is there a way of choosing it via Wikia.css or something? Thanks. 