Board Thread:Support Requests - Getting Technical/@comment-301511-20190412135941/@comment-23989026-20190412161753

Assuming you have Admin rights it can be done via MediaWiki:Wikia.css

.page-PAGENAME #WikiaPageBackground { background:url('https://vignette.wikia.nocookie.net/...'); }

PAGENAME → probably HOME or MAIN PAGE  #WikiaPageBackground  → includes the right column as well ''' https://vignette.wikia.nocookie.net/... ''' → goto file page, right click and vignette-name should appear