Add style scheme for printing documents
Currently, we have syntax highlighting disabled (as of commit 34dde11e) because we don't know how the style scheme will look in print. It could have very bright colors that don't print well (at least on white paper).
It would be nice if we could gain a style scheme that is focused purely on print output. That might mean very simple colors (if any) and more focus on typography.
When printing, we could switch to using that instead of the display style scheme.