Theme

Netdocs ships the Material theme — a Scriban port of the Material for MkDocs DOM, driven by the vendored Material CSS/JS bundle. The theme is configured under theme in appsettings.json.

Theme keys

Palette

"palette": [
  {
    "media": "(prefers-color-scheme: light)",
    "scheme": "default",
    "primary": "indigo",
    "accent": "indigo"
  }
]

• scheme — default (light) or slate (dark).
• primary / accent — Material color names (e.g. indigo, teal, grey, orange).
• media — optional media query used for automatic light/dark switching.
• toggle — optional { "icon": "...", "name": "..." }. When present, the theme renders a header switcher button so visitors can flip between schemes (persisted in the browser).

Light/dark toggle

List two palettes, each with a toggle, to render a header switcher. The first palette is the default applied on initial load, so put slate first for a dark-by-default site:

"palette": [
  {
    "scheme": "slate",
    "primary": "indigo",
    "accent": "indigo",
    "toggle": { "icon": "material/brightness-4", "name": "Switch to light mode" }
  },
  {
    "scheme": "default",
    "primary": "indigo",
    "accent": "indigo",
    "toggle": { "icon": "material/brightness-7", "name": "Switch to dark mode" }
  }
]

Recognized toggle icons are material/brightness-7 (sun), material/brightness-4 (moon), and material/brightness-auto. The selected scheme is stored in the browser and restored on the visitor's next visit. Add media queries instead if you prefer the scheme to follow the operating-system setting automatically.

Fonts

"font": { "text": "Roboto", "code": "Roboto Mono" }

Fonts are loaded from Google Fonts. Set to your preferred families.

Features

Feature flags mirror Material for MkDocs. Commonly used flags:

Code highlighting

Code blocks are produced in two independent stages:

1. Parsing (core, always on). The Markdig fence parser understands the fence syntax — language, title="…", linenums, hl_lines, the brace/attr-list form, #!lang inline shebangs, and ```mermaid — and emits neutral, renderer-agnostic HTML: <pre><code class="language-x" …>. This never changes.
2. Highlighting (theme, swappable). A client-side renderer colourises that HTML in the browser. This is what the highlight key selects.

{
  "Netdocs": {
    "theme": {
      "name": "material",
      "highlight": "highlightjs"
    }
  }
}

Bringing your own highlighter

Set highlight to any value other than highlightjs/none and load your renderer as an extra asset:

{
  "Netdocs": {
    "theme": { "highlight": "prism" },
    "extra_css": ["https://cdn.jsdelivr.net/npm/prismjs/themes/prism-tomorrow.css"],
    "extra_javascript": ["https://cdn.jsdelivr.net/npm/prismjs/prism.min.js"]
  }
}

Because the core parser already stamps each block with class="language-x", most highlighters work with no further wiring. If your theme uses instant navigation, re-run your highlighter on Material's document$ observable so blocks are re-processed after each page swap.

Overrides (customDir)

Point customDir at a directory of Scriban templates/partials to override the built-in theme. Files there take precedence over the bundled theme, letting you replace partials such as partials/footer.html or the base main.html.

Overridable templates & partials

The Material theme is deliberately split into small pieces so you can override just the part you care about — for example, replace partials/social.html to change how social links render without copying the whole header. Create a file with the same path under your customDir and it wins over the bundled version.

Every bundled partial starts with a {{ # … }} comment block documenting the globals it receives and how to override it. Those Scriban comments produce no output, so they never appear in your HTML (minified or not) — read them straight from the theme source.

Porting a Material override to Scriban

Material's Jinja partials map fairly directly onto Scriban. The common substitutions:

Use the trim markers {{~ / ~}} to strip surrounding whitespace, and the theme helpers (social_icon, strip_slash, base_url) instead of Material's Jinja filters. For example, an override that renders the configured social links in the header:

{{~ if extra.social ~}}
<div class="header-social">
  {{~ for link in extra.social ~}}
  <a href="{{ link.link }}" class="md-social__link md-header__button md-icon"
     title="{{ link.icon }}" target="_blank" rel="noopener">{{ social_icon link.icon }}</a>
  {{~ end ~}}
</div>
{{~ end ~}}

Social links & icons

Configure the links shown in the header and footer under extra.social. Each entry has an icon name (Material/FontAwesome-style, e.g. fontawesome/brands/github) and a link:

{
  "Netdocs": {
    "extra": {
      "social": [
        { "icon": "fontawesome/brands/github", "link": "https://github.com/you/repo" },
        { "icon": "fontawesome/brands/mastodon", "link": "https://fosstodon.org/@you" },
        { "icon": "material/rss", "link": "feed_rss_created.xml" }
      ]
    }
  }
}

The social_icon helper maps an icon name to an inline SVG. Built-in glyphs are matched by substring, so both the Material (material/github) and FontAwesome (fontawesome/brands/github) naming styles work:

Custom icons

Add or override glyphs without editing the theme by supplying extra.social_icons — a map of icon-name substring to an SVG path (using a 0 0 24 24 viewBox). Custom entries take precedence over the built-ins:

{
  "Netdocs": {
    "extra": {
      "social_icons": {
        "bluesky": "M12 10.8C10.7 8.3 7.2 3.6 3.9 ... Z"
      },
      "social": [
        { "icon": "fontawesome/brands/bluesky", "link": "https://bsky.app/profile/you" }
      ]
    }
  }
}

Icons

Nav items can show a small glyph before their label — the same "reference" look as mkdocs-material. Set an icon in either place:

• Front matter on a page (mkdocs-material compatible):

  ---
  title: Code blocks
  icon: code-braces
  ---
  

• Nav config (icon on any nav entry, including sections):

  "nav": [
    { "title": "Setup", "icon": "rocket-launch", "children": [ /* … */ ] },
    { "path": "reference/code-blocks.md", "icon": "code-braces" }
  ]
  

An icon name is resolved in this order: a custom extra.social_icons override → a curated Material glyph → a brand glyph (social_icon) → a literal emoji/short string rendered as text (so icon: "🚀" works too). Fully-qualified names like material/rocket-launch also match — only the last path segment is used.

Curated icon names

Need one that isn't listed? Add it via extra.social_icons — the override map feeds nav icons and badges too.