diff --git a/docs/content/docs/features.mdx b/docs/content/docs/features.mdx
index aacdad1..2155122 100644
--- a/docs/content/docs/features.mdx
+++ b/docs/content/docs/features.mdx
@@ -11,7 +11,7 @@ Chronicle is a self-hosted documentation platform built with Vite + Nitro.
 ## Content
 
 - **MDX support** — write documentation in MDX with React component embedding
-- **Frontmatter** — `title`, `description`, `order`, `icon`, `lastModified`
+- **Frontmatter** — `title`, `short`, `description`, `identifiers`, `order`, `icon`, `lastModified`, `authors`, `draft`
 - **Directory metadata** — `meta.json` for folder titles, ordering, and sidebar config
 - **Remark plugins** — directives, admonitions, image resolution, link resolution, mermaid, reading time
 - **Syntax highlighting** — powered by Shiki via Apsara CodeBlock
@@ -40,6 +40,7 @@ Chronicle is a self-hosted documentation platform built with Vite + Nitro.
 
 - **Default theme** — sidebar + content layout with sub-navigation bar
 - **Paper theme** — book-style single-column with reading progress
+- **Fanfold theme** — continuous-form line printer paper, monospace throughout
 - **Dark/light mode** — system preference or manual toggle
 
 ## SEO & AI
diff --git a/docs/content/docs/frontmatter.mdx b/docs/content/docs/frontmatter.mdx
index 8914845..38a811a 100644
--- a/docs/content/docs/frontmatter.mdx
+++ b/docs/content/docs/frontmatter.mdx
@@ -51,8 +51,9 @@ The sidebar shows `SPP` and keeps the full title on the link's tooltip. Headings
 breadcrumbs, the browser tab and search all keep using `title`. Pages that set no
 `short` fall back to their title, so this is opt-in per page.
 
-Honoured by the `fanfold` theme, whose rail is narrow enough to need it. The
-`default` and `paper` themes ignore it and always show `title`.
+Honoured by the `fanfold` theme, whose rail is narrow enough to need it, and by
+its printed header, where the trail reads `Protocols / SPP` rather than the full
+title. The `default` and `paper` themes ignore it and always show `title`.
 
 ### description
 
@@ -62,6 +63,27 @@ Optional meta description for the page. Used in SEO metadata.
 description: Step-by-step installation instructions
 ```
 
+### identifiers
+
+Optional list of extra lines identifying the page — the standard it implements, a
+package, a command. Each entry is printed as written, so the page decides both
+the facts and their order.
+
+```yaml
+title: Space Packet Protocol
+identifiers:
+  - CCSDS 133.0-B-2 * Space Packet Protocol
+  - pkg/spp * astro spp
+```
+
+Use it for pages whose readers already know them by something other than a title.
+A theme cannot work these out for itself, which is why they live in the page.
+
+Honoured by the `fanfold` theme, which prints them in its header block under the
+breadcrumb trail. A page that sets none keeps the lines that theme derives on its
+own — the site name, the section, and the page's path. The `default` and `paper`
+themes ignore the field.
+
 ### order
 
 Controls the page's position in sidebar navigation. Lower numbers appear first.
@@ -118,6 +140,19 @@ authors:
   - Sam Patel
 ```
 
+### draft
+
+Set `draft: true` to keep a page out of the site. It is dropped from the
+navigation tree, so it does not appear in the sidebar, in breadcrumbs, in search,
+or in the previous/next links.
+
+```yaml
+draft: true
+```
+
+The file stays where it is, so this is the way to leave a page in the repository
+while it is still being written.
+
 A single author can be written without the list:
 
 ```yaml
diff --git a/docs/content/docs/themes.mdx b/docs/content/docs/themes.mdx
index ccb29da..238a335 100644
--- a/docs/content/docs/themes.mdx
+++ b/docs/content/docs/themes.mdx
@@ -57,7 +57,7 @@ theme:
 - Minimal, distraction-free design
 - Reading progress tracking
 - Optimized typography for long content
-- Light mode only (dark mode toggle is disabled)
+- Light and dark mode
 
 ## Fanfold Theme
 
@@ -77,10 +77,20 @@ theme:
 
 ### Features
 
-- Header block prints the breadcrumb trail, site name, path, and a page counter
+- Header block prints the breadcrumb trail and a page counter, then whatever the
+  page gives as [`identifiers`](/docs/frontmatter) — falling back to the site
+  name and path
 - Page title set in a dot-matrix face that steps down in size as titles get longer
-- Code blocks print as ruled listings with a line-number gutter
-- Tables print as field maps with no cell borders
+- Everything on the sheet is held to one 80-column measure, so prose, tables,
+  code and rules share the same edges
+- Code blocks print as ruled listings with a line-number gutter. A fence with no
+  language is treated as a drawing rather than a listing and gets no numbers, so
+  ASCII diagrams keep their own alignment
+- Tables print as field maps with no cell borders. A wide table with a column of
+  prose in it has its columns measured at build time, and folds that column under
+  each row behind a toggle, so the paragraph reads at the full width of the sheet
+  instead of a narrow column
+- Uses a page's [`short`](/docs/frontmatter) label in the rail and the header trail
 - Its own landing page: a masthead over a register of every section
 - Light and dark mode