Board Thread:Support Requests - Designing Your Wiki/@comment-3474513-20130406064118/@comment-4712589-20160514172501

Josh the Hedgehog wrote: Penguin-Pal wrote: There is a limit of 150 KB in the Admin Dashboard, but if you want to use detailed images, add to your MediaWiki:Wikia.css: In case you want to apply this for personal use only, do it through personal stylesheet. It worked for me, but when I edit, the background of the Visual Mode is the same as the main background. The background for the Source Mode stays the same as the main color background (referring to the Theme Designer). How can I fix this? You have my utmost gratitude in advance.
 * Replace XXXXXXXXX with the image URL.
 * Replace YYYYYYYYY with the background color below the image.

Have you got a link to the wiki so I can take a better look?