Can I make a feature request?
A lot of themes you can pick from make use of a YAML block at the start of the article to specify bits of the theme, would it be possible to process a YAML block and inject that data in as part of the ejs environment variables?
That way if people want to include features like pinning articles or having banner images per article they can specify and implement all that themselves in their own themes. Would be a really nice sort of "here, you can do anything with this if you have the know how" feature!