custom-theme example
Pass Options.CSS to override the default stylesheet wholesale. The page structure (nav, headings, code blocks, tables) stays the same so any CSS that targets body, h1, h2, nav.sidebar, code, pre, table, .muted will land cleanly.
$ go run ./examples/custom-theme ./site
$ open ./site/index.html
This example uses a deliberately-loud retro green-and-magenta theme. Replace retroCSS with your company's design tokens (or import a stylesheet via Options.CSS containing @import url(...)).