User blog comment:Brandon Rhea/New Page and Article Headers: Official Release Date/@comment-26402117-20170527142419/@comment-20644-20170530215048

Any additional theming options for the header will likely come through Theme Designer updates, rather than custom coding, so if there are a lot of wikis that feel like something is very valuable rather than just a "nice to have" then that's something we could consider adding to the Theme Designer.