Board Thread:Support Requests - Designing Your Wiki/@comment-1380999-20200305035312/@comment-44807868-20200315154338

It doesn't customize any functionality that shouldn't be touched, so no, there's no customization policy in this. This is just a template being used on homepage. Maybe you're mistaking it with the navigation and page header? These two are absolutely different aspects and the customization policy disallows CSS customization to them, yes.