Board Thread:Support Requests - Designing Your Wikia/@comment-31246436-20160113143654/@comment-25523075-20160113145906

2Actimv wrote: A bigger size like 64x64px works as well, at least I was able to do it 10 minutes ago :) If you use the Theme designer, then you cannot upload a bigger file than 16x16px.

@AChildOfGod: You can upload a bigger icon if you replace the File:Favicon.ico with another ICO file.