From 0aed41faaa56d00ba3cb309ad4576b1ddd026e85 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micka=C3=ABl=20Canouil?=
 <8896044+mcanouil@users.noreply.github.com>
Date: Wed, 14 Oct 2026 21:21:50 +0200
Subject: [PATCH 1/7] refactor: remove the typst-title hot-fix

Quarto renders theorem titles as Typst markup since 1.10.18, so the hot-fix and its option go, and the extension now requires Quarto 1.10.19.
---
 CHANGELOG.md                                  |   5 +
 _extensions/code-window/_extension.yml        |   4 +-
 .../_modules/hotfix/skylighting-typst-fix.lua |  11 +-
 .../_modules/hotfix/typst-title-fix.lua       | 111 ------------------
 _extensions/code-window/_schema.yml           |  12 --
 _extensions/code-window/code-window.lua       |  10 --
 docs/examples.qmd                             |   3 +-
 docs/reference.qmd                            |   1 -
 example.qmd                                   |   3 -
 tests/fixtures/theorem-title.qmd              |  17 +++
 tests/run.sh                                  |  21 ++++
 11 files changed, 51 insertions(+), 147 deletions(-)
 delete mode 100644 _extensions/code-window/_modules/hotfix/typst-title-fix.lua
 create mode 100644 tests/fixtures/theorem-title.qmd

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8a7ba8a..cac9f61 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,11 @@
 
 ## Unreleased
 
+### Breaking Changes
+
+- refactor: Remove the `typst-title` hot-fix and its `hotfix.typst-title` option, as Quarto renders theorem titles as Typst markup since 1.10.18.
+- build: Require Quarto 1.10.19 or later.
+
 ## 1.6.0 (2026-10-05)
 
 ### New Features
diff --git a/_extensions/code-window/_extension.yml b/_extensions/code-window/_extension.yml
index 3c87631..4e45315 100644
--- a/_extensions/code-window/_extension.yml
+++ b/_extensions/code-window/_extension.yml
@@ -1,10 +1,8 @@
 title: Code Window
 author: Mickaël Canouil
 version: 1.6.0
-quarto-required: ">=1.9.36"
+quarto-required: ">=1.10.19"
 contributes:
   filters:
     - at: pre-quarto
       path: main.lua
-    - at: post-quarto
-      path: _modules/hotfix/typst-title-fix.lua
diff --git a/_extensions/code-window/_modules/hotfix/skylighting-typst-fix.lua b/_extensions/code-window/_modules/hotfix/skylighting-typst-fix.lua
index a3a48d3..6d7a9ea 100644
--- a/_extensions/code-window/_modules/hotfix/skylighting-typst-fix.lua
+++ b/_extensions/code-window/_modules/hotfix/skylighting-typst-fix.lua
@@ -8,6 +8,10 @@
 --- radius, stroke) and ignores its own fill parameter. This module overrides
 --- the Skylighting function with better block styling and adds inline code
 --- background support for Typst output.
+--- Quarto patches the block styling of its own Skylighting function since
+--- 1.9.27 (https://github.com/quarto-dev/quarto-cli/issues/14126). This module
+--- redefines that function to draw annotation markers, so it keeps the block
+--- styling as well.
 
 local _wrapper_prefix = 'code-window'
 
@@ -239,11 +243,8 @@ end
 --- Walk the document tree and box inline Code with background styling.
 --- The extension contributes the pass once, so it sees each Code element
 --- once and boxes it once.
---- Code in title scaffolds is converted to plain
---- Typst backtick code to avoid Skylighting tokens with inner quotes
---- that would break the string parameter Quarto generates.
---- The typst-title-fix post-quarto filter then evaluates the string
---- as markup so the backtick code renders with proper inline styling.
+--- Code in title scaffolds is converted to plain Typst backtick code,
+--- which renders inside the title content Quarto writes since 1.10.18.
 local function process_inline_code(doc)
   if not quarto.doc.is_format('typst') then
     return doc
diff --git a/_extensions/code-window/_modules/hotfix/typst-title-fix.lua b/_extensions/code-window/_modules/hotfix/typst-title-fix.lua
deleted file mode 100644
index 89c3690..0000000
--- a/_extensions/code-window/_modules/hotfix/typst-title-fix.lua
+++ /dev/null
@@ -1,111 +0,0 @@
---- @module "typst-title-fix"
---- @license MIT
---- @copyright 2026 Mickaël Canouil
---- @author Mickaël Canouil
---- @brief Hot-fix for Quarto rendering theorem titles as string parameters.
---- Quarto renders custom type titles as title: "..." (string mode) which
---- stringifies any Typst markup. This post-quarto filter scans the source
---- for cross-reference div IDs, then injects Typst wrapper functions that
---- evaluate string titles as Typst markup via eval(mode: "markup").
-
---- Mapping from Quarto cross-reference prefix to Typst function name.
-local PREFIX_TO_FUNC = {
-  thm = 'theorem',
-  lem = 'lemma',
-  cor = 'corollary',
-  prp = 'proposition',
-  cnj = 'conjecture',
-  def = 'definition',
-  exm = 'example',
-  exr = 'exercise',
-  sol = 'solution',
-}
-
---- Typst wrapper template. %s is replaced with the function name.
-local WRAPPER_TEMPLATE = [==[
-#let _cw-orig-%s = %s
-#let %s(title: none, ..args) = {
-  let t = if title != none and type(title) == str {
-    eval(title, mode: "markup")
-  } else {
-    title
-  }
-  _cw-orig-%s(title: t, ..args)
-}]==]
-
---- Build Typst code that wraps each theorem function to eval string titles.
---- @param func_names table List of function names to wrap
---- @return string Typst code
-local function build_wrappers(func_names)
-  local parts = { '// code-window: hot-fix for Quarto rendering theorem titles as strings.' }
-  for _, name in ipairs(func_names) do
-    table.insert(parts, string.format(WRAPPER_TEMPLATE, name, name, name, name))
-  end
-  return table.concat(parts, '\n')
-end
-
---- Scan source files for cross-reference div IDs and return the
---- corresponding Typst function names.
---- NOTE: uses raw-text pattern matching on source files, so it will not
---- detect divs inside `include` shortcodes or other indirect sources.
---- @return table List of function names
-local function detect_theorem_types()
-  local func_names = {}
-  local seen = {}
-  for _, input_file in ipairs(PANDOC_STATE.input_files) do
-    local f = io.open(input_file, 'r')
-    if f then
-      local ok, source = pcall(f.read, f, '*a')
-      f:close()
-      if not ok then source = '' end
-      for prefix in source:gmatch('::: *{#(%w+)%-') do
-        if PREFIX_TO_FUNC[prefix] and not seen[prefix] then
-          table.insert(func_names, PREFIX_TO_FUNC[prefix])
-          seen[prefix] = true
-        end
-      end
-    end
-  end
-  return func_names
-end
-
-return {
-  {
-    Pandoc = function(doc)
-      if not quarto.doc.is_format('typst') then
-        return doc
-      end
-
-      -- Check if the hotfix is enabled via metadata set by the pre-quarto filter.
-      local hotfix_meta = doc.meta['_code-window-hotfix']
-      if hotfix_meta then
-        local enabled = hotfix_meta['typst-title']
-        if enabled and pandoc.utils.stringify(enabled) == 'false' then
-          return doc
-        end
-      end
-
-      -- Guard: skip if already injected.
-      for _, blk in ipairs(doc.blocks) do
-        if blk.t == 'RawBlock' and blk.format == 'typst'
-            and blk.text:find('code-window: hot-fix for Quarto rendering theorem titles', 1, true) then
-          return doc
-        end
-      end
-
-      local func_names = detect_theorem_types()
-      if #func_names == 0 then
-        return doc
-      end
-
-      -- Insert at the start of doc.blocks. RawBlocks placed here appear
-      -- after the Typst template preamble (where make-frame defines the
-      -- theorem functions), so the wrappers can reference them.
-      -- This relies on Quarto emitting the template preamble before
-      -- doc.blocks; if that ordering changes the wrappers will break.
-      table.insert(doc.blocks, 1, pandoc.RawBlock('typst', build_wrappers(func_names)))
-
-      return doc
-    end,
-  },
-}
diff --git a/_extensions/code-window/_schema.yml b/_extensions/code-window/_schema.yml
index b7938d9..2484de6 100644
--- a/_extensions/code-window/_schema.yml
+++ b/_extensions/code-window/_schema.yml
@@ -60,18 +60,6 @@ options:
           quarto-version:
             type: string
             description: "Quarto version at or above which this hot-fix is automatically disabled."
-      typst-title:
-        type: [boolean, object]
-        default: true
-        description: "Enable the Typst title hot-fix (evaluates theorem title strings as markup). Use a boolean or a map with 'enabled' and 'quarto-version' keys."
-        additionalProperties: false
-        properties:
-          enabled:
-            type: boolean
-            description: "Explicitly enable or disable this hot-fix."
-          quarto-version:
-            type: string
-            description: "Quarto version at or above which this hot-fix is automatically disabled."
 
 attributes:
   CodeBlock:
diff --git a/_extensions/code-window/code-window.lua b/_extensions/code-window/code-window.lua
index d67c3c0..8b007bf 100644
--- a/_extensions/code-window/code-window.lua
+++ b/_extensions/code-window/code-window.lua
@@ -76,7 +76,6 @@ local VALID_COLLAPSE = {
 local HOTFIX_DEFAULTS = {
   ['code-annotations'] = true,
   ['skylighting'] = true,
-  ['typst-title'] = true,
 }
 
 local CURRENT_FORMAT = nil
@@ -919,18 +918,9 @@ function Meta(meta)
     lines_label = opts['lines-label'] == 'true',
     hotfix_code_annotations = hotfix['code-annotations'],
     hotfix_skylighting = hotfix['skylighting'],
-    hotfix_typst_title = hotfix['typst-title'],
     code_annotations = annotations_enabled,
   }
 
-  -- Store hotfix state in metadata so the post-quarto typst-title-fix filter
-  -- can read it (it runs as a separate filter and has no access to CONFIG).
-  if not meta['_code-window-hotfix'] then
-    meta['_code-window-hotfix'] = pandoc.MetaMap({})
-  end
-  meta['_code-window-hotfix']['typst-title'] = pandoc.MetaString(
-    CONFIG.enabled and hotfix['typst-title'] and 'true' or 'false'
-  )
 
   -- Cache syntax highlighting background colour for Typst contrast-aware annotations.
   if CURRENT_FORMAT == 'typst' then
diff --git a/docs/examples.qmd b/docs/examples.qmd
index 0abce96..cfaf19c 100644
--- a/docs/examples.qmd
+++ b/docs/examples.qmd
@@ -228,7 +228,7 @@ The option does nothing in HTML, which draws its chrome from the stylesheet and
 
 ## The Typst hot-fixes
 
-The three hot-fixes act on Typst output only.
+The two hot-fixes act on Typst output only.
 Each one is on by default.
 A boolean turns one off:
 
@@ -238,7 +238,6 @@ extensions:
     hotfix:
       code-annotations: true
       skylighting: false
-      typst-title: true
 ```
 
 A map adds a version at which the hot-fix switches itself off:
diff --git a/docs/reference.qmd b/docs/reference.qmd
index e75f844..c9e162e 100644
--- a/docs/reference.qmd
+++ b/docs/reference.qmd
@@ -119,7 +119,6 @@ All of them follow `enabled`, so a document that turns the filter off takes no h
 | --- | --- |
 | `code-annotations` | Code annotations in Typst output. |
 | `skylighting` | Block styling and inline code backgrounds in Typst output. |
-| `typst-title` | Theorem title strings, evaluated as markup. |
 
 : The Typst hot-fixes. {.striped .hover tbl-colwidths="[26,74]"}
 
diff --git a/example.qmd b/example.qmd
index 061edcd..6a0ca7d 100644
--- a/example.qmd
+++ b/example.qmd
@@ -275,7 +275,6 @@ extensions:
     hotfix:
       code-annotations: true
       skylighting: true
-      typst-title: true
 ```
 
 Each hotfix accepts either a boolean or a map with `enabled` and `quarto-version` keys for per-hotfix version thresholds:
@@ -287,8 +286,6 @@ extensions:
       code-annotations: true
       skylighting:
         enabled: false
-      typst-title:
-        quarto-version: "1.10.0"
 ```
 
 Override per block with the `code-window-style` attribute:
diff --git a/tests/fixtures/theorem-title.qmd b/tests/fixtures/theorem-title.qmd
new file mode 100644
index 0000000..e31a818
--- /dev/null
+++ b/tests/fixtures/theorem-title.qmd
@@ -0,0 +1,17 @@
+---
+title: "Theorem title"
+filters:
+  - code-window
+format:
+  typst:
+    keep-typ: true
+---
+
+A theorem title holds markup and inline code.
+Quarto renders the title as Typst content, so no hot-fix is needed.
+
+::: {#thm-markup}
+## A title with *emphasis* and `code`
+
+Body.
+:::
diff --git a/tests/run.sh b/tests/run.sh
index 8ae852c..b140180 100755
--- a/tests/run.sh
+++ b/tests/run.sh
@@ -345,6 +345,27 @@ else
 		'DEFAULT_COLLAPSE="closed" in collapse-block-off.html'
 fi
 
+# ============================================================================
+# A theorem title renders as Typst content without a hot-fix
+# ============================================================================
+
+# Quarto writes the title as content since 1.10.18, so the markup survives and
+# the extension adds no wrapper of its own. Inline code in the title still has
+# to compile, which the render itself checks.
+render theorem-title typst
+if grep -qF '#theorem(title: [A title with #emph[emphasis]' "${work_dir}/theorem-title.typ"; then
+	report pass "theorem-title: the title keeps its markup"
+else
+	report fail "theorem-title: the title keeps its markup" \
+		"#theorem(title: [A title with #emph[emphasis] in theorem-title.typ"
+fi
+if grep -q 'hot-fix for Quarto rendering theorem titles' "${work_dir}/theorem-title.typ"; then
+	report fail "theorem-title: no title hot-fix is injected" \
+		"no 'hot-fix for Quarto rendering theorem titles' block in theorem-title.typ"
+else
+	report pass "theorem-title: no title hot-fix is injected"
+fi
+
 # ============================================================================
 
 printf '\n%s passed, %s failed\n' "${passed}" "${failed}"

From 87db4ce9560b5359c6660174a57068f7459286a4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micka=C3=ABl=20Canouil?=
 <8896044+mcanouil@users.noreply.github.com>
Date: Wed, 14 Oct 2026 21:22:05 +0200
Subject: [PATCH 2/7] style: drop a stray blank line

---
 _extensions/code-window/code-window.lua | 1 -
 1 file changed, 1 deletion(-)

diff --git a/_extensions/code-window/code-window.lua b/_extensions/code-window/code-window.lua
index 8b007bf..b1cf221 100644
--- a/_extensions/code-window/code-window.lua
+++ b/_extensions/code-window/code-window.lua
@@ -921,7 +921,6 @@ function Meta(meta)
     code_annotations = annotations_enabled,
   }
 
-
   -- Cache syntax highlighting background colour for Typst contrast-aware annotations.
   if CURRENT_FORMAT == 'typst' then
     local hm = PANDOC_WRITER_OPTIONS and PANDOC_WRITER_OPTIONS.highlight_method

From b3dc9d9f9d29b1ad6ed6b85c4ae4fcb82d4f112f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micka=C3=ABl=20Canouil?=
 <8896044+mcanouil@users.noreply.github.com>
Date: Wed, 14 Oct 2026 21:27:28 +0200
Subject: [PATCH 3/7] docs: explain why the Skylighting override stays

---
 .../_modules/hotfix/skylighting-typst-fix.lua | 20 ++++++++-----------
 example.qmd                                   |  3 ++-
 2 files changed, 10 insertions(+), 13 deletions(-)

diff --git a/_extensions/code-window/_modules/hotfix/skylighting-typst-fix.lua b/_extensions/code-window/_modules/hotfix/skylighting-typst-fix.lua
index 6d7a9ea..a419d12 100644
--- a/_extensions/code-window/_modules/hotfix/skylighting-typst-fix.lua
+++ b/_extensions/code-window/_modules/hotfix/skylighting-typst-fix.lua
@@ -3,15 +3,12 @@
 --- @copyright 2026 Mickaël Canouil
 --- @author Mickaël Canouil
 --- @brief Typst skylighting styling override and inline code background.
---- Pandoc 3.8+ generates correct token colours and bgcolor from the theme,
---- but the generated Skylighting block lacks styling properties (width, inset,
---- radius, stroke) and ignores its own fill parameter. This module overrides
---- the Skylighting function with better block styling and adds inline code
---- background support for Typst output.
+--- This module redefines the Skylighting function to draw code annotation
+--- markers, and adds inline code background support for Typst output.
 --- Quarto patches the block styling of its own Skylighting function since
---- 1.9.27 (https://github.com/quarto-dev/quarto-cli/issues/14126). This module
---- redefines that function to draw annotation markers, so it keeps the block
---- styling as well.
+--- 1.9.27 (https://github.com/quarto-dev/quarto-cli/issues/14126), but the
+--- redefinition replaces that function, so it carries the block styling
+--- (width, inset, radius, stroke) and honours its fill parameter itself.
 
 local _wrapper_prefix = 'code-window'
 
@@ -22,10 +19,9 @@ local function set_wrapper(prefix)
   _wrapper_prefix = prefix
 end
 
---- Build a Skylighting override with improved block styling.
---- Pandoc 3.8+ generates correct bgcolor but the block call lacks width,
---- inset, radius, and stroke properties. The fill parameter is also ignored.
---- This override fixes both issues.
+--- Build a Skylighting override that draws annotation markers.
+--- It replaces Quarto's patched function, so it sets the block width, inset,
+--- radius and stroke itself, and honours its fill parameter.
 --- @return string|nil Typst #let Skylighting(...) definition, or nil
 local function build_skylighting_override()
   local hm = PANDOC_WRITER_OPTIONS and PANDOC_WRITER_OPTIONS.highlight_method
diff --git a/example.qmd b/example.qmd
index 6a0ca7d..ebe109c 100644
--- a/example.qmd
+++ b/example.qmd
@@ -283,7 +283,8 @@ Each hotfix accepts either a boolean or a map with `enabled` and `quarto-version
 extensions:
   code-window:
     hotfix:
-      code-annotations: true
+      code-annotations:
+        quarto-version: "1.11.0"
       skylighting:
         enabled: false
 ```

From c77198d43ef64dac7dc5d25bce6a240583870c79 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micka=C3=ABl=20Canouil?=
 <8896044+mcanouil@users.noreply.github.com>
Date: Wed, 14 Oct 2026 21:32:41 +0200
Subject: [PATCH 4/7] fix: box inline code in theorem titles

The raw backtick fallback existed for the string-mode titles of the removed hot-fix. Quarto writes titles as content, so title code now takes the themed box. The version-threshold examples move to 1.11.0, above the new minimum.
---
 CHANGELOG.md                                  |  4 ++
 .../_modules/hotfix/skylighting-typst-fix.lua | 49 +------------------
 docs/examples.qmd                             |  2 +-
 docs/reference.qmd                            |  2 +-
 tests/run.sh                                  |  8 +++
 5 files changed, 16 insertions(+), 49 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index cac9f61..1e5611b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@
 - refactor: Remove the `typst-title` hot-fix and its `hotfix.typst-title` option, as Quarto renders theorem titles as Typst markup since 1.10.18.
 - build: Require Quarto 1.10.19 or later.
 
+### Bug Fixes
+
+- fix: Style inline code in a Typst theorem title like inline code anywhere else.
+
 ## 1.6.0 (2026-10-05)
 
 ### New Features
diff --git a/_extensions/code-window/_modules/hotfix/skylighting-typst-fix.lua b/_extensions/code-window/_modules/hotfix/skylighting-typst-fix.lua
index a419d12..f854c54 100644
--- a/_extensions/code-window/_modules/hotfix/skylighting-typst-fix.lua
+++ b/_extensions/code-window/_modules/hotfix/skylighting-typst-fix.lua
@@ -219,59 +219,14 @@ function Pandoc(doc)
   return doc
 end
 
---- Check if a Div is a Quarto title scaffold (inline-only content).
---- NOTE: relies on Quarto's internal `__quarto_custom_scaffold` attribute,
---- which is not part of the public API and may change without notice.
---- @param div pandoc.Div
---- @return boolean
-local function is_title_scaffold(div)
-  if div.attributes['__quarto_custom_scaffold'] ~= 'true' then
-    return false
-  end
-  for _, child in ipairs(div.content) do
-    if child.t ~= 'Plain' and child.t ~= 'Para' then
-      return false
-    end
-  end
-  return true
-end
-
 --- Walk the document tree and box inline Code with background styling.
 --- The extension contributes the pass once, so it sees each Code element
---- once and boxes it once.
---- Code in title scaffolds is converted to plain Typst backtick code,
---- which renders inside the title content Quarto writes since 1.10.18.
+--- once and boxes it once, theorem titles included.
 local function process_inline_code(doc)
   if not quarto.doc.is_format('typst') then
     return doc
   end
-
-  local code_filter = { Code = function(el) return process_typst_inline(el) end }
-  local title_filter = {
-    Code = function(el)
-      return pandoc.RawInline('typst', '`' .. el.text .. '`')
-    end,
-  }
-
-  local function walk_blocks(blocks)
-    local new_blocks = {}
-    for _, blk in ipairs(blocks) do
-      if blk.t == 'Div' then
-        if is_title_scaffold(blk) then
-          table.insert(new_blocks, blk:walk(title_filter))
-        else
-          blk.content = walk_blocks(blk.content)
-          table.insert(new_blocks, blk)
-        end
-      else
-        table.insert(new_blocks, blk:walk(code_filter))
-      end
-    end
-    return pandoc.Blocks(new_blocks)
-  end
-
-  doc.blocks = walk_blocks(doc.blocks)
-  return doc
+  return doc:walk({ Code = process_typst_inline })
 end
 
 return {
diff --git a/docs/examples.qmd b/docs/examples.qmd
index cfaf19c..a0a71b2 100644
--- a/docs/examples.qmd
+++ b/docs/examples.qmd
@@ -248,7 +248,7 @@ extensions:
     hotfix:
       skylighting:
         enabled: true
-        quarto-version: "1.9.0"
+        quarto-version: "1.11.0"
 ```
 
 The extension compares that string with the running Quarto.
diff --git a/docs/reference.qmd b/docs/reference.qmd
index c9e162e..c560b9e 100644
--- a/docs/reference.qmd
+++ b/docs/reference.qmd
@@ -128,7 +128,7 @@ extensions:
     hotfix:
       skylighting:
         enabled: true
-        quarto-version: "1.9.0"
+        quarto-version: "1.11.0"
 ```
 
 They exist for [quarto-dev/quarto-cli#14170](https://github.com/quarto-dev/quarto-cli/issues/14170) and will be removed once Quarto covers the same ground.
diff --git a/tests/run.sh b/tests/run.sh
index b140180..a4c98bc 100755
--- a/tests/run.sh
+++ b/tests/run.sh
@@ -366,6 +366,14 @@ else
 	report pass "theorem-title: no title hot-fix is injected"
 fi
 
+# Inline code in the title takes the same box as inline code anywhere else.
+if grep -F '#theorem(title: [A title with #emph[emphasis]' "${work_dir}/theorem-title.typ" | grep -q 'box(fill:'; then
+	report pass "theorem-title: inline code in the title is boxed"
+else
+	report fail "theorem-title: inline code in the title is boxed" \
+		"a box(fill: call inside the #theorem(title: [...]) line of theorem-title.typ"
+fi
+
 # ============================================================================
 
 printf '\n%s passed, %s failed\n' "${passed}" "${failed}"

From 11025457a719f02d61e51988f0041e24f15ff546 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micka=C3=ABl=20Canouil?=
 <8896044+mcanouil@users.noreply.github.com>
Date: Wed, 14 Oct 2026 21:53:06 +0200
Subject: [PATCH 5/7] fix: keep the inline code pass off metadata

Walking the whole document boxed code in the document title, which the template writes before the box's definitions, so the render failed with no theme background. The pass walks the body only again.
---
 .../_modules/hotfix/skylighting-typst-fix.lua     |  7 +++++--
 tests/fixtures/title-inline-code.qmd              | 13 +++++++++++++
 tests/run.sh                                      | 15 +++++++++++++++
 3 files changed, 33 insertions(+), 2 deletions(-)
 create mode 100644 tests/fixtures/title-inline-code.qmd

diff --git a/_extensions/code-window/_modules/hotfix/skylighting-typst-fix.lua b/_extensions/code-window/_modules/hotfix/skylighting-typst-fix.lua
index f854c54..cc62269 100644
--- a/_extensions/code-window/_modules/hotfix/skylighting-typst-fix.lua
+++ b/_extensions/code-window/_modules/hotfix/skylighting-typst-fix.lua
@@ -221,12 +221,15 @@ end
 
 --- Walk the document tree and box inline Code with background styling.
 --- The extension contributes the pass once, so it sees each Code element
---- once and boxes it once, theorem titles included.
+--- once and boxes it once, theorem titles included. Metadata such as the
+--- document title is left alone: the template writes it before the
+--- definitions the box relies on.
 local function process_inline_code(doc)
   if not quarto.doc.is_format('typst') then
     return doc
   end
-  return doc:walk({ Code = process_typst_inline })
+  doc.blocks = doc.blocks:walk({ Code = process_typst_inline })
+  return doc
 end
 
 return {
diff --git a/tests/fixtures/title-inline-code.qmd b/tests/fixtures/title-inline-code.qmd
new file mode 100644
index 0000000..e55e5a4
--- /dev/null
+++ b/tests/fixtures/title-inline-code.qmd
@@ -0,0 +1,13 @@
+---
+title: "A `code` title"
+filters:
+  - code-window
+format:
+  typst:
+    keep-typ: true
+    highlight-style: none
+---
+
+The document title holds inline code, and the theme gives no background.
+The title is metadata, which the inline code pass leaves alone, so the render
+compiles.
diff --git a/tests/run.sh b/tests/run.sh
index a4c98bc..25d3d1f 100755
--- a/tests/run.sh
+++ b/tests/run.sh
@@ -345,6 +345,21 @@ else
 		'DEFAULT_COLLAPSE="closed" in collapse-block-off.html'
 fi
 
+# ============================================================================
+# Inline code in the document title is left to Quarto
+# ============================================================================
+
+# The title is metadata, written into the template call before the
+# extension's own definitions, so the inline code pass must not box it. The
+# render compiling is the check; the grep says what reached the title.
+render title-inline-code typst
+if grep -q 'title: \[A #raw("code") title\]\|title: \[A `code` title\]' "${work_dir}/title-inline-code.typ"; then
+	report pass "title-inline-code: the title code is not boxed"
+else
+	report fail "title-inline-code: the title code is not boxed" \
+		"an unboxed code span in the title argument of title-inline-code.typ"
+fi
+
 # ============================================================================
 # A theorem title renders as Typst content without a hot-fix
 # ============================================================================

From fa87841b926ee2177383769a630f09866728f0dd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micka=C3=ABl=20Canouil?=
 <8896044+mcanouil@users.noreply.github.com>
Date: Wed, 14 Oct 2026 21:53:36 +0200
Subject: [PATCH 6/7] docs: cite Quarto 1.10 for content-mode titles

---
 CHANGELOG.md | 2 +-
 tests/run.sh | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1e5611b..d9556c2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@
 
 ### Breaking Changes
 
-- refactor: Remove the `typst-title` hot-fix and its `hotfix.typst-title` option, as Quarto renders theorem titles as Typst markup since 1.10.18.
+- refactor: Remove the `typst-title` hot-fix and its `hotfix.typst-title` option, as Quarto renders theorem titles as Typst markup since 1.10.
 - build: Require Quarto 1.10.19 or later.
 
 ### Bug Fixes
diff --git a/tests/run.sh b/tests/run.sh
index 25d3d1f..0bc9c75 100755
--- a/tests/run.sh
+++ b/tests/run.sh
@@ -353,6 +353,7 @@ fi
 # extension's own definitions, so the inline code pass must not box it. The
 # render compiling is the check; the grep says what reached the title.
 render title-inline-code typst
+# shellcheck disable=SC2016 # the backticks are a literal Typst code span, not a command
 if grep -q 'title: \[A #raw("code") title\]\|title: \[A `code` title\]' "${work_dir}/title-inline-code.typ"; then
 	report pass "title-inline-code: the title code is not boxed"
 else
@@ -364,7 +365,7 @@ fi
 # A theorem title renders as Typst content without a hot-fix
 # ============================================================================
 
-# Quarto writes the title as content since 1.10.18, so the markup survives and
+# Quarto writes the title as content since 1.10, so the markup survives and
 # the extension adds no wrapper of its own. Inline code in the title still has
 # to compile, which the render itself checks.
 render theorem-title typst

From 459c5b5b4fe40fb6772fd5ad37ea3440b600fff4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micka=C3=ABl=20Canouil?=
 <8896044+mcanouil@users.noreply.github.com>
Date: Wed, 14 Oct 2026 22:02:29 +0200
Subject: [PATCH 7/7] docs: add the pull request reference to the changelog

---
 CHANGELOG.md | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index d9556c2..d61aee8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,12 +4,12 @@
 
 ### Breaking Changes
 
-- refactor: Remove the `typst-title` hot-fix and its `hotfix.typst-title` option, as Quarto renders theorem titles as Typst markup since 1.10.
-- build: Require Quarto 1.10.19 or later.
+- refactor: Remove the `typst-title` hot-fix and its `hotfix.typst-title` option, as Quarto renders theorem titles as Typst markup since 1.10. (#78)
+- build: Require Quarto 1.10.19 or later. (#78)
 
 ### Bug Fixes
 
-- fix: Style inline code in a Typst theorem title like inline code anywhere else.
+- fix: Style inline code in a Typst theorem title like inline code anywhere else. (#78)
 
 ## 1.6.0 (2026-10-05)