I left `Requirements::themedCSS()` in for the sake of themes, meant to undo that doc change actually. Are there any other methods that I’ve renamed that are likely to be called with `<% require %>`? `javascriptTemplate()` is the only other possible one I can see, is it likely (or even possible) that someone would’ve used that in a template?

I thought about switching to the underscore, lowercase method names and using a `GlobalTemplateProvider` to provide theme support, but that’d need an overhaul of how the `<% require %>` syntax works so that’s not going to work.