diff --git a/docs/authoring/admonitions.md b/docs/authoring/admonitions.md
index 2f2caea..056b3e6 100644
--- a/docs/authoring/admonitions.md
+++ b/docs/authoring/admonitions.md
@@ -19,9 +19,10 @@ configuration:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.admonition]
-    [project.markdown_extensions.pymdownx.details]
-    [project.markdown_extensions.pymdownx.superfences]
+    [project.markdown_extensions]
+    admonition = {}
+    pymdownx.details = {}
+    pymdownx.superfences = {}
     ```
 
 === "`mkdocs.yml`"
@@ -48,8 +49,8 @@ lines to your configuration:
 === "`zensical.toml`"
 
     ``` toml
-    [project.theme.icon]
-    admonition = {<type> = "<icon>"}
+    [project.theme.icon.admonition]
+    <type> = "<icon>"
     ```
 
     ??? example "Expand to show alternate icon sets"
diff --git a/docs/authoring/buttons.md b/docs/authoring/buttons.md
index 9fb6320..d67e87c 100644
--- a/docs/authoring/buttons.md
+++ b/docs/authoring/buttons.md
@@ -19,7 +19,8 @@ following lines to your configuration:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.attr_list]
+    [project.markdown_extensions]
+    attr_list = {}
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/authoring/code-blocks.md b/docs/authoring/code-blocks.md
index cb54e80..589038c 100644
--- a/docs/authoring/code-blocks.md
+++ b/docs/authoring/code-blocks.md
@@ -20,13 +20,15 @@ following lines to your configuration:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.highlight]
-    anchor_linenums = true
-    line_spans = "__span"
-    pygments_lang_class = true
-    [project.markdown_extensions.pymdownx.inlinehilite]
-    [project.markdown_extensions.pymdownx.snippets]
-    [project.markdown_extensions.pymdownx.superfences]
+    [project.markdown_extensions]
+    pymdownx.highlight = {
+      anchor_linenums = true,
+      line_spans = "__span",
+      pygments_lang_class = true,
+    }
+    pymdownx.inlinehilite = {}
+    pymdownx.snippets = {}
+    pymdownx.superfences = {}
     ```
 
 === "`mkdocs.yml`"
@@ -64,7 +66,7 @@ your configuration to enable them globally:
     ``` toml
     [project.theme]
     features = [
-        "content.code.copy"
+      "content.code.copy",
     ]
     ```
 
@@ -113,7 +115,7 @@ to your configuration to enable it globally:
     ``` toml
     [project.theme]
     features = [
-        "content.code.select"
+      "content.code.select",
     ]
     ```
 
@@ -159,7 +161,7 @@ your configuration to enable them globally:
     ``` toml
     [project.theme]
     features = [
-      "content.code.annotate" # (1)!
+      "content.code.annotate", # (1)!
     ]
     ```
 
@@ -296,7 +298,9 @@ language of the block can be placed, e.g. for JavaScript in `#!js // ...` and
 ```` markdown title="Code block with annotation"
 ``` toml
 [project.theme]
-features = ["content.code.annotate"] # (1)!
+features = [
+  "content.code.annotate", # (1)!
+]
 ```
 
 1.  :man_raising_hand: I'm a code annotation! I can contain `code`, __formatted
@@ -307,7 +311,9 @@ features = ["content.code.annotate"] # (1)!
 
 ``` toml
 [project.theme]
-features = ["content.code.annotate"] # (1)!
+features = [
+  "content.code.annotate", # (1)!
+]
 ```
 
 1. :man_raising_hand: I'm a code annotation! I can contain `code`, **formatted
@@ -505,7 +511,9 @@ a new color by using an [additional style sheet]:
 
     ``` toml
     [project]
-    extra_css = ["stylesheets/extra.css"]
+    extra_css = [
+      "stylesheets/extra.css",
+    ]
     ```
 
 === "`mkdocs.yml`"
@@ -531,7 +539,9 @@ override it as part of your [additional style sheet]:
 
     ``` toml
     [project]
-    extra_css = ["stylesheets/extra.css"]
+    extra_css = [
+      "stylesheets/extra.css",
+    ]
     ```
 
 === "`mkdocs.yml`"
@@ -559,7 +569,9 @@ of an [additional style sheet]:
 
     ``` toml
     [project]
-    extra_css = ["stylesheets/extra.css"]
+    extra_css = [
+      "stylesheets/extra.css",
+    ]
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/authoring/content-tabs.md b/docs/authoring/content-tabs.md
index a40f871..c4620bb 100644
--- a/docs/authoring/content-tabs.md
+++ b/docs/authoring/content-tabs.md
@@ -20,9 +20,11 @@ following lines to your configuration file:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.superfences]
-    [project.markdown_extensions.pymdownx.tabbed]
-    alternate_style = true
+    [project.markdown_extensions]
+    pymdownx.superfences = {}
+    pymdownx.tabbed = {
+      alternate_style = true
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -68,9 +70,13 @@ function with the following lines:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.tabbed.slugify]
-    object = "pymdownx.slugs.slugify"
-    kwds = { case = "lower" }
+    [project.markdown_extensions]
+    pymdownx.tabbed = {
+      slugify = {
+        object = "pymdownx.slugs.slugify",
+        kwds.case = "lower",
+      }
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -95,8 +101,9 @@ following lines to your configuration:
 
     ``` toml
     [project.theme]
-    features = ["content.tabs.link"]
-
+    features = [
+      "content.tabs.link",
+    ]
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/authoring/data-tables.md b/docs/authoring/data-tables.md
index f371541..b25dca7 100644
--- a/docs/authoring/data-tables.md
+++ b/docs/authoring/data-tables.md
@@ -20,7 +20,8 @@ configuration file:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.tables]
+    [project.markdown_extensions]
+    tables = {}
     ```
 
 === "`mkdocs.yml`"
@@ -148,8 +149,8 @@ via [additional JavaScript]:
     ``` toml
     [project]
     extra_javascript = [
-        "https://unpkg.com/tablesort@5.3.0/dist/tablesort.min.js",
-        "javascripts/tablesort.js"
+      "https://unpkg.com/tablesort@5.3.0/dist/tablesort.min.js",
+      "javascripts/tablesort.js",
     ]
     ```
 
diff --git a/docs/authoring/diagrams.md b/docs/authoring/diagrams.md
index 63cf72c..9f28e24 100644
--- a/docs/authoring/diagrams.md
+++ b/docs/authoring/diagrams.md
@@ -21,10 +21,16 @@ will automatically initialize the JavaScript runtime when a page includes a
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.superfences]
-    custom_fences = [
-      { name = "mermaid", class = "mermaid", format = "pymdownx.superfences.fence_code_format" }
-    ]
+    [project.markdown_extensions]
+    pymdownx.superfences = {
+      custom_fences = [
+        {
+          name = "mermaid",
+          class = "mermaid",
+          format = "pymdownx.superfences.fence_code_format",
+        },
+      ],
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -293,7 +299,9 @@ you can do so by adding a custom JavaScript file to your configuration:
 
     ``` toml
     [project]
-    extra_javascript = ["javascripts/mermaid.mjs"]
+    extra_javascript = [
+      "javascripts/mermaid.mjs",
+    ]
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/authoring/footnotes.md b/docs/authoring/footnotes.md
index 4fa62ad..cd5e74c 100644
--- a/docs/authoring/footnotes.md
+++ b/docs/authoring/footnotes.md
@@ -19,7 +19,8 @@ your configuration:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.footnotes]
+    [project.markdown_extensions]
+    footnotes = {}
     ```
 
 === "`mkdocs.yml`"
@@ -44,7 +45,7 @@ enabled with:
     ``` toml
     [project.theme]
     features = [
-        "content.footnote.tooltips"
+      "content.footnote.tooltips",
     ]
     ```
 
diff --git a/docs/authoring/formatting.md b/docs/authoring/formatting.md
index e6a062c..a4fb023 100644
--- a/docs/authoring/formatting.md
+++ b/docs/authoring/formatting.md
@@ -18,10 +18,11 @@ configuration:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.caret]
-    [project.markdown_extensions.pymdownx.keys]
-    [project.markdown_extensions.pymdownx.mark]
-    [project.markdown_extensions.pymdownx.tilde]
+    [project.markdown_extensions]
+    pymdownx.caret = {}
+    pymdownx.keys = {}
+    pymdownx.mark = {}
+    pymdownx.tilde = {}
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/authoring/grids.md b/docs/authoring/grids.md
index fdaa530..2304fb4 100644
--- a/docs/authoring/grids.md
+++ b/docs/authoring/grids.md
@@ -19,8 +19,9 @@ to your configuration:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.attr_list]
-    [project.markdown_extensions.md_in_html]
+    [project.markdown_extensions]
+    attr_list = {}
+    md_in_html = {}
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/authoring/icons-emojis.md b/docs/authoring/icons-emojis.md
index 32306cb..bd1980b 100644
--- a/docs/authoring/icons-emojis.md
+++ b/docs/authoring/icons-emojis.md
@@ -19,8 +19,12 @@ shortcodes. Add the following lines to your configuration:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.attr_list]
-    [project.markdown_extensions.pymdownx.emoji]
+    [project.markdown_extensions]
+    attr_list = {}
+    pymdownx.emoji = {
+      emoji_generator = "zensical.extensions.emoji.to_svg",
+      emoji_index = "zensical.extensions.emoji.twemoji",
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -29,8 +33,8 @@ shortcodes. Add the following lines to your configuration:
     markdown_extensions:
       - attr_list
       - pymdownx.emoji:
-          emoji_index: !!python/name:material.extensions.emoji.twemoji
-          emoji_generator: !!python/name:material.extensions.emoji.to_svg
+          emoji_generator: !!python/name:zensical.extensions.emoji.to_svg
+          emoji_index: !!python/name:zensical.extensions.emoji.twemoji
     ```
 
 See additional configuration options:
@@ -110,7 +114,9 @@ While HTML allows inline styles, it's always recommended to add an
 
     ``` toml
     [project]
-    extra_css = ["stylesheets/extra.css"]
+    extra_css = [
+      "stylesheets/extra.css",
+    ]
     ```
 
 === "`mkdocs.yml`"
@@ -158,7 +164,9 @@ dedicated CSS class to the icon:
 
     ``` toml
     [project]
-    extra_css = ["stylesheets/extra.css"]
+    extra_css = [
+      "stylesheets/extra.css",
+    ]
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/authoring/images.md b/docs/authoring/images.md
index 3e5aeef..cfbbe6d 100644
--- a/docs/authoring/images.md
+++ b/docs/authoring/images.md
@@ -19,9 +19,10 @@ following lines to your configuration:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.attr_list]
-    [project.markdown_extensions.md_in_html]
-    [project.markdown_extensions.pymdownx.blocks.caption]
+    [project.markdown_extensions]
+    attr_list = {}
+    md_in_html = {}
+    pymdownx.blocks.caption = {}
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/authoring/lists.md b/docs/authoring/lists.md
index dbc0425..0311ed2 100644
--- a/docs/authoring/lists.md
+++ b/docs/authoring/lists.md
@@ -20,9 +20,11 @@ your configuration:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.def_list]
-    [project.markdown_extensions.pymdownx.tasklist]
-    custom_checkbox = true
+    [project.markdown_extensions]
+    def_list = {}
+    pymdownx.tasklist = {
+      custom_checkbox = true
+    }
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/authoring/math.md b/docs/authoring/math.md
index bab3cce..38104f1 100644
--- a/docs/authoring/math.md
+++ b/docs/authoring/math.md
@@ -57,11 +57,14 @@ to your configuration:
     ``` toml
     [project]
     extra_javascript = [
-        "javascripts/mathjax.js",
-        "https://unpkg.com/mathjax@3/es5/tex-mml-chtml.js"
+      "javascripts/mathjax.js",
+      "https://unpkg.com/mathjax@3/es5/tex-mml-chtml.js",
     ]
-    [project.markdown_extensions.pymdownx.arithmatex]
-    generic = true
+
+    [project.markdown_extensions]
+    pymdownx.arithmatex = {
+      generic = true,
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -125,17 +128,19 @@ supports a subset of LaTeX syntax and can render math to HTML and SVG. To use
     ``` toml
     [project]
     extra_javascript = [
-        "javascripts/katex.js",
-        "https://unpkg.com/katex@0/dist/katex.min.js",
-        "https://unpkg.com/katex@0/dist/contrib/auto-render.min.js"
+      "javascripts/katex.js",
+      "https://unpkg.com/katex@0/dist/katex.min.js",
+      "https://unpkg.com/katex@0/dist/contrib/auto-render.min.js",
     ]
 
     extra_css = [
-        "https://unpkg.com/katex@0/dist/katex.min.css"
+      "https://unpkg.com/katex@0/dist/katex.min.css",
     ]
 
-    [project.markdown_extensions.pymdownx.arithmatex]
-    generic = true
+    [project.markdown_extensions]
+    pymdownx.arithmatex = {
+      generic = true,
+    }
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/authoring/tooltips.md b/docs/authoring/tooltips.md
index e35fd05..2448958 100644
--- a/docs/authoring/tooltips.md
+++ b/docs/authoring/tooltips.md
@@ -21,9 +21,10 @@ following line to your configuration:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.abbr]
-    [project.markdown_extensions.attr_list]
-    [project.markdown_extensions.pymdownx.snippets]
+    [project.markdown_extensions]
+    abbr = {}
+    attr_list = {}
+    pymdownx.snippets = {}
     ```
 
 === "`mkdocs.yml`"
@@ -52,7 +53,7 @@ lines to your configuration::
     ``` toml
     [project.theme]
     features = [
-        "content.tooltips"
+      "content.tooltips",
     ]
     ```
 
@@ -153,8 +154,10 @@ pages with the following configuration:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.snippets]
-    auto_append = ["includes/abbreviations.md"]
+    [project.markdown_extensions]
+    pymdownx.snippets = {
+      auto_append = ["includes/abbreviations.md"],
+    }
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/customization.md b/docs/customization.md
index fa6e2d5..e81be8a 100644
--- a/docs/customization.md
+++ b/docs/customization.md
@@ -40,7 +40,9 @@ design or apply specific branding, simply place your style sheet file within the
 
     ``` toml
     [project]
-    extra_css = ["stylesheets/extra.css"]
+    extra_css = [
+      "stylesheets/extra.css",
+    ]
     ```
 
 === "`mkdocs.yml`"
@@ -80,7 +82,9 @@ the `docs` directory:
 
     ``` toml
     [project]
-    extra_javascript = ["javascripts/extra.js"]
+    extra_javascript = [
+      "javascripts/extra.js",
+    ]
     ```
 
 === "`mkdocs.yml`"
@@ -125,9 +129,13 @@ to be loaded as a module:
 === "`zensical.toml`"
 
     ``` toml
-    [[project.extra_javascript]]
-    path = "javascripts/extra.js"
-    type = "module"
+    [project]
+    extra_javascript = [
+      {
+        path = "javascripts/extra.js",
+        type = "module",
+      },
+    ]
     ```
 
 === "`mkdocs.yml`"
@@ -148,9 +156,13 @@ the `async` case:
 === "`zensical.toml`"
 
     ``` toml
-    [[project.extra_javascript]]
-    path = "javascripts/extra.js"
-    async = true
+    [project]
+    extra_javascript = [
+      {
+        path = "javascripts/extra.js",
+        async = true,
+      },
+    ]
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/setup/analytics.md b/docs/setup/analytics.md
index 9a86f71..2efc7d4 100644
--- a/docs/setup/analytics.md
+++ b/docs/setup/analytics.md
@@ -322,7 +322,9 @@ generated by users interacting with the feedback widget with the help of some
 
     ``` toml
     [project]
-    extra_javascript = ["javascripts/feedback.js"]
+    extra_javascript = [
+      "javascripts/feedback.js",
+    ]
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/setup/basics.md b/docs/setup/basics.md
index 822fc84..e569511 100644
--- a/docs/setup/basics.md
+++ b/docs/setup/basics.md
@@ -327,7 +327,10 @@ configuration:
 
     ``` toml
     [project]
-    watch = ["data.csv", "fragments"]
+    watch = [
+      "data.csv",
+      "fragments",
+    ]
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/setup/colors.md b/docs/setup/colors.md
index 752beb3..07ccccb 100644
--- a/docs/setup/colors.md
+++ b/docs/setup/colors.md
@@ -179,11 +179,13 @@ following lines to allow users to switch between light and dark mode:
 === "`zensical.toml`"
 
     ``` toml
+    # Palette toggle for light mode
     [[project.theme.palette]] # (1)!
     scheme = "default"
     toggle.icon = "lucide/sun"
     toggle.name = "Switch to dark mode"
 
+    # Palette toggle for dark mode
     [[project.theme.palette]]
     scheme = "slate"
     toggle.icon = "lucide/moon"
@@ -395,7 +397,9 @@ your configuration:
 
     ``` toml
     [project]
-    extra_css = ["stylesheets/extra.css"]
+    extra_css = [
+      "stylesheets/extra.css",
+    ]
     ```
 
 === "`mkdocs.yml`"
@@ -427,7 +431,10 @@ in the [color schemes][palette.scheme] section:
     ``` toml
     [project]
     theme.palette.scheme = "youtube"
-    extra_css = ["stylesheets/extra.css"]
+
+    extra_css = [
+      "stylesheets/extra.css",
+    ]
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/setup/data-privacy.md b/docs/setup/data-privacy.md
index 99b5261..fc20c07 100644
--- a/docs/setup/data-privacy.md
+++ b/docs/setup/data-privacy.md
@@ -25,10 +25,10 @@ following to your configuration:
     [project.extra.consent]
     title = "Cookie consent"
     description = """
-        We use cookies to recognize your repeated visits and preferences, as well
-        as to measure the effectiveness of our documentation and whether users
-        find what they're searching for. With your consent, you're helping us to
-        make our documentation better.
+      We use cookies to recognize your repeated visits and preferences, as well
+      as to measure the effectiveness of our documentation and whether users
+      find what they're searching for. With your consent, you're helping us to
+      make our documentation better.
     """ # (1)!
     ```
 
@@ -101,8 +101,10 @@ The following properties are available:
 
         ``` toml
         [project.extra.consent.cookies]
-        analytics.name = "Google Analytics"
-        checked = false
+        analytics = {
+          name = "Google Analytics",
+          checked = false,
+        }
         ```
 
     === "`mkdocs.yml`"
@@ -122,8 +124,10 @@ The following properties are available:
 
         ``` toml
         [project.extra.consent.cookies]
-        analytics.name = "Google Analytics" # (1)!
-        custom = "Custom cookie"
+        analytics = {
+          name = "Google Analytics", # (1)!
+          custom = "Custom cookie",
+        }
         ```
 
         1. If you define a custom cookie as part of the `cookies` property,
@@ -158,8 +162,8 @@ The following properties are available:
         ``` toml
         [project.extra.consent]
         actions = [
-            "accept",
-            "manage" # (1)!
+          "accept",
+          "manage", # (1)!
         ]
         ```
 
@@ -238,7 +242,9 @@ Use [additional JavaScript] to query the result:
 
     ``` toml
     [project]
-    extra_javascript = ["javascripts/consent.js"]
+    extra_javascript = [
+      "javascripts/consent.js",
+    ]
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/setup/extensions/about.md b/docs/setup/extensions/about.md
index 0d8fa0f..516a1f6 100644
--- a/docs/setup/extensions/about.md
+++ b/docs/setup/extensions/about.md
@@ -30,15 +30,12 @@ Python Markdown extensions described below.
 
 ## Python Markdown Extensions
 
-Since Zensical currently uses [Python Markdown], its extensions for the original
-Markdown syntax are available. The [Python Markdown Extensions] package is
-also installed with Zensical, adding more extensions.
+Because Zensical uses [Python Markdown], its built-in extensions are available.
+Zensical also installs the [Python Markdown Extensions] package, which provides
+additional extensions. Most are enabled [by default] and listed explicitly in
+the `zensical.toml` file generated by `zensical new`.
 
-Most of the extensions are enabled [by default] and are included explicitly in
-the template generated by the `zensical new` command. You can [turn off the
-defaults] if they do not suit your project.
-
-The following extensions are all supported by Zensical and therefore strongly
+The following extensions are supported by Zensical and therefore strongly
 recommended. Click on each extension to learn about its purpose and
 configuration:
 
@@ -75,47 +72,58 @@ the default configuration until you find a reason to change it. This will enable
 most of the features listed in the [Authoring] part of this documentation.
 
 If you bootstrap your project with [`zensical new`][new command], the following
-extensions are enabled by default:
+default configuration is written to the generated `zensical.toml` file:
 
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.abbr]
-    [project.markdown_extensions.admonition]
-    [project.markdown_extensions.attr_list]
-    [project.markdown_extensions.def_list]
-    [project.markdown_extensions.footnotes]
-    [project.markdown_extensions.md_in_html]
-    [project.markdown_extensions.toc]
-    permalink = true
-    [project.markdown_extensions.pymdownx.arithmatex]
-    generic = true
-    [project.markdown_extensions.pymdownx.betterem]
-    [project.markdown_extensions.pymdownx.caret]
-    [project.markdown_extensions.pymdownx.details]
-    [project.markdown_extensions.pymdownx.emoji]
-    emoji_generator = "zensical.extensions.emoji.to_svg"
-    emoji_index = "zensical.extensions.emoji.twemoji"
-    [project.markdown_extensions.pymdownx.highlight]
-    anchor_linenums = true
-    line_spans = "__span"
-    pygments_lang_class = true
-    [project.markdown_extensions.pymdownx.inlinehilite]
-    [project.markdown_extensions.pymdownx.keys]
-    [project.markdown_extensions.pymdownx.magiclink]
-    [project.markdown_extensions.pymdownx.mark]
-    [project.markdown_extensions.pymdownx.smartsymbols]
-    [project.markdown_extensions.pymdownx.superfences]
-    custom_fences = [
-      { name = "mermaid", class = "mermaid", format = "pymdownx.superfences.fence_code_format" }
-    ]
-    [project.markdown_extensions.pymdownx.tabbed]
-    alternate_style = true
-    combine_header_slug = true
-    [project.markdown_extensions.pymdownx.tasklist]
-    custom_checkbox = true
-    [project.markdown_extensions.pymdownx.tilde]
-
+    [project.markdown_extensions]
+    abbr = {}
+    admonition = {}
+    attr_list = {}
+    def_list = {}
+    footnotes = {}
+    md_in_html = {}
+    toc = {
+      permalink = true,
+    }
+    pymdownx.arithmatex = {
+      generic = true,
+    }
+    pymdownx.betterem = {}
+    pymdownx.caret = {}
+    pymdownx.details = {}
+    pymdownx.emoji = {
+      emoji_generator = "zensical.extensions.emoji.to_svg",
+      emoji_index = "zensical.extensions.emoji.twemoji",
+    }
+    pymdownx.highlight = {
+      anchor_linenums = true,
+      line_spans = "__span",
+      pygments_lang_class = true,
+    }
+    pymdownx.inlinehilite = {}
+    pymdownx.keys = {}
+    pymdownx.magiclink = {}
+    pymdownx.mark = {}
+    pymdownx.smartsymbols = {}
+    pymdownx.superfences = {
+      custom_fences = [
+        {
+          name = "mermaid",
+          class = "mermaid",
+          format = "pymdownx.superfences.fence_code_format",
+        },
+      ],
+    }
+    pymdownx.tabbed = {
+      alternate_style = true,
+      combine_header_slug = true,
+    }
+    pymdownx.tasklist = {
+      custom_checkbox = true,
+    }
+    pymdownx.tilde = {}
     ```
 
 === "`mkdocs.yml`"
@@ -136,8 +144,8 @@ extensions are enabled by default:
       - pymdownx.caret
       - pymdownx.details
       - pymdownx.emoji:
-          emoji_index: !!python/name:material.extensions.emoji.twemoji
-          emoji_generator: !!python/name:material.extensions.emoji.to_svg
+          emoji_generator: !!python/name:zensical.extensions.emoji.to_svg
+          emoji_index: !!python/name:zensical.extensions.emoji.twemoji
       - pymdownx.highlight:
           anchor_linenums: true
           line_spans: __span
@@ -172,24 +180,6 @@ extensions are enabled by default:
     will allow you to add extensions to a set of defaults, customize extensions
     included in the defaults, as well as remove them.
 
-## Turning off the defaults
-
-If you want to reset the behavior to the default behavior of MkDocs, create a
-configuration with an empty list of extensions:
-
-=== "`zensical.toml`"
-
-    ``` toml
-    [project]
-    markdown_extensions = {}
-    ```
-
-=== "`mkdocs.yml`"
-
-    ``` yaml
-    markdown_extensions: {}
-    ```
-
 [Abbreviations]: python-markdown.md#abbreviations
 [Admonition]: python-markdown.md#admonition
 [Arithmatex]: python-markdown-extensions.md#arithmatex
@@ -218,4 +208,3 @@ configuration with an empty list of extensions:
 [Table of Contents]: python-markdown.md#table-of-contents
 [Tables]: python-markdown.md#tables
 [Tasklist]: python-markdown-extensions.md#tasklist
-[turn off the defaults]: #turning-off-the-defaults
diff --git a/docs/setup/extensions/glightbox.md b/docs/setup/extensions/glightbox.md
index 14b303e..47740b7 100644
--- a/docs/setup/extensions/glightbox.md
+++ b/docs/setup/extensions/glightbox.md
@@ -12,7 +12,8 @@ The GLightbox extension, included with Zensical, enables image zoom through ligh
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.glightbox]
+    [project.markdown_extensions]
+    zensical.extensions.glightbox = {}
     ```
 
 === "`mkdocs.yml`"
@@ -31,8 +32,10 @@ When `true`, images are wrapped automatically, unless they have the `off-glb` CS
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.glightbox]
-    auto = false
+    [project.markdown_extensions]
+    zensical.extensions.glightbox = {
+      auto = false,
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -50,8 +53,10 @@ When set to `true`, images for light and dark modes are grouped into separate ga
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.glightbox]
-    auto_themed = true
+    [project.markdown_extensions]
+    zensical.extensions.glightbox = {
+      auto_themed = true,
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -69,8 +74,10 @@ Width of the lightbox overlay (default: `auto`). Accepts CSS units (`px`, `%`, `
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.glightbox]
-    width = "800px"
+    [project.markdown_extensions]
+    zensical.extensions.glightbox = {
+      width = "800px",
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -88,8 +95,10 @@ Height of the lightbox overlay (default: `auto`). Accepts CSS units (`px`, `%`,
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.glightbox]
-    height = "600px"
+    [project.markdown_extensions]
+    zensical.extensions.glightbox = {
+      height = "600px",
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -107,8 +116,12 @@ List of image CSS classes to exclude from automatic wrapping. The default value
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.glightbox]
-    skip_classes = ["extra-class-to-exclude"]
+    [project.markdown_extensions]
+    zensical.extensions.glightbox = {
+      skip_classes = [
+        "extra-class-to-exclude",
+      ],
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -127,8 +140,10 @@ When set to `true`, the image `alt` attribute is used as a caption when no expli
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.glightbox]
-    auto_caption = true
+    [project.markdown_extensions]
+    zensical.extensions.glightbox = {
+      auto_caption = true,
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -146,8 +161,10 @@ Default caption position for images (default: `bottom`). Valid values: `bottom`,
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.glightbox]
-    caption_position = "right"
+    [project.markdown_extensions]
+    zensical.extensions.glightbox = {
+      caption_position = "right",
+    }
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/setup/extensions/macros.md b/docs/setup/extensions/macros.md
index ff3af97..5248975 100644
--- a/docs/setup/extensions/macros.md
+++ b/docs/setup/extensions/macros.md
@@ -12,7 +12,8 @@ The Macros extension, included with Zensical, enables [Jinja2] templating in Mar
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.macros]
+    [project.markdown_extensions]
+    zensical.extensions.macros = {}
     ```
 
 === "`mkdocs.yml`"
@@ -44,8 +45,10 @@ Name of a Python module to load for defining variables, macros, and filters (def
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.macros]
-    module_name = "macros"
+    [project.markdown_extensions]
+    zensical.extensions.macros = {
+      module_name = "macros",
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -63,8 +66,12 @@ List of additional importable module names (pluglets) to load on top of [`module
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.macros]
-    modules = ["my_package.macros"]
+    [project.markdown_extensions]
+    zensical.extensions.macros = {
+      modules = [
+        "my_package.macros",
+      ],
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -83,15 +90,23 @@ YAML files whose contents are merged into the template variables. A list of file
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.macros]
-    include_yaml = ["data/variables.yml"]
+    [project.markdown_extensions]
+    zensical.extensions.macros = {
+      include_yaml = [
+        "data/variables.yml",
+      ],
+    }
     ```
 
     To assign file contents to a named variable:
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.macros.include_yaml]
-    team = "data/team.yml"
+    [project.markdown_extensions]
+    zensical.extensions.macros = {
+      include_yaml = {
+        team = "data/team.yml"
+      }
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -119,8 +134,10 @@ Directory used as a Jinja2 template loader, enabling `{% include %}` tags in pag
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.macros]
-    include_dir = "includes"
+    [project.markdown_extensions]
+    zensical.extensions.macros = {
+      include_dir = "includes",
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -138,8 +155,10 @@ When `true`, all pages are rendered as Jinja2 templates. When `false`, only page
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.macros]
-    render_by_default = false
+    [project.markdown_extensions]
+    zensical.extensions.macros = {
+      render_by_default = false,
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -157,8 +176,10 @@ When `true`, render errors cause the build to fail. When `false`, pages that fai
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.macros]
-    on_error_fail = true
+    [project.markdown_extensions]
+    zensical.extensions.macros = {
+      on_error_fail = true,
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -176,8 +197,10 @@ How undefined template variables are handled. When set to `"keep"`, undefined ex
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.macros]
-    on_undefined = "strict"
+    [project.markdown_extensions]
+    zensical.extensions.macros = {
+      on_undefined = "strict",
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -195,8 +218,10 @@ Opening delimiter for Jinja2 block tags (default: `{%`).
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.macros]
-    j2_block_start_string = "<%"
+    [project.markdown_extensions]
+    zensical.extensions.macros = {
+      j2_block_start_string = "<%",
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -214,8 +239,10 @@ Closing delimiter for Jinja2 block tags (default: `%}`).
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.macros]
-    j2_block_end_string = "%>"
+    [project.markdown_extensions]
+    zensical.extensions.macros = {
+      j2_block_end_string = "%>",
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -233,8 +260,10 @@ Opening delimiter for Jinja2 variable expressions (default: `{{`).
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.macros]
-    j2_variable_start_string = "<<"
+    [project.markdown_extensions]
+    zensical.extensions.macros = {
+      j2_variable_start_string = "<<",
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -252,8 +281,10 @@ Closing delimiter for Jinja2 variable expressions (default: `}}`).
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.macros]
-    j2_variable_end_string = ">>"
+    [project.markdown_extensions]
+    zensical.extensions.macros = {
+      j2_variable_end_string = ">>",
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -271,8 +302,10 @@ Opening delimiter for Jinja2 comments (default: `{#`).
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.macros]
-    j2_comment_start_string = "<#"
+    [project.markdown_extensions]
+    zensical.extensions.macros = {
+      j2_comment_start_string = "<#",
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -290,8 +323,10 @@ Closing delimiter for Jinja2 comments (default: `#}`).
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.macros]
-    j2_comment_end_string = "#>"
+    [project.markdown_extensions]
+    zensical.extensions.macros = {
+      j2_comment_end_string = "#>",
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -309,8 +344,12 @@ List of [Jinja2 extensions] to be loaded into the template environment. The defa
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.macros]
-    j2_extensions = ["jinja2.ext.do"]
+    [project.markdown_extensions]
+    zensical.extensions.macros = {
+      j2_extensions = [
+        "jinja2.ext.do",
+      ],
+    }
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/setup/extensions/mkdocstrings.md b/docs/setup/extensions/mkdocstrings.md
index 603b84d..f92766d 100644
--- a/docs/setup/extensions/mkdocstrings.md
+++ b/docs/setup/extensions/mkdocstrings.md
@@ -42,11 +42,11 @@ Configure mkdocstrings as a plugin:
     [project.plugins.mkdocstrings.handlers.python]
     inventories = ["https://docs.python.org/3/objects.inv"]
     paths = ["src"]
-
-    [project.plugins.mkdocstrings.handlers.python.options]
-    docstring_style = "google"
-    inherited_members = true
-    show_source = false
+    options = {
+      docstring_style = "google",
+      inherited_members = true,
+      show_source = false,
+    }
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/setup/extensions/python-markdown-extensions.md b/docs/setup/extensions/python-markdown-extensions.md
index 039110e..a32c450 100644
--- a/docs/setup/extensions/python-markdown-extensions.md
+++ b/docs/setup/extensions/python-markdown-extensions.md
@@ -24,8 +24,10 @@ mathematical typesetting. Enable it via:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.arithmatex]
-    generic = true
+    [project.markdown_extensions]
+    pymdownx.arithmatex = {
+      generic = true,
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -76,8 +78,8 @@ of [additional JavaScript]:
     ``` toml
     [project]
     extra_javascript = [
-        "javascripts/mathjax.js",
-        "https://unpkg.com/mathjax@3/es5/tex-mml-chtml.js"
+      "javascripts/mathjax.js",
+      "https://unpkg.com/mathjax@3/es5/tex-mml-chtml.js",
     ]
     ```
 
@@ -106,7 +108,8 @@ including images, tables, and code blocks. Enable it via:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.blocks.caption]
+    [project.markdown_extensions]
+    pymdownx.blocks.caption = {}
     ```
 
 === "`mkdocs.yml`"
@@ -129,9 +132,10 @@ via:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.caret]
-    [project.markdown_extensions.pymdownx.mark]
-    [project.markdown_extensions.pymdownx.tilde]
+    [project.markdown_extensions]
+    pymdownx.caret = {}
+    pymdownx.mark = {}
+    pymdownx.tilde = {}
     ```
 
 === "`mkdocs.yml`"
@@ -161,7 +165,8 @@ user. Enable it via:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.details]
+    [project.markdown_extensions]
+    pymdownx.details = {}
     ```
 
 === "`mkdocs.yml`"
@@ -183,9 +188,11 @@ in `*.svg` file format into the resulting HTML page. Enable it via:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.emoji]
-    emoji_index = "zensical.extensions.emoji.twemoji" # (1)!
-    emoji_generator = "zensical.extensions.emoji.to_svg"
+    [project.markdown_extensions]
+    pymdownx.emoji = {
+      emoji_generator = "zensical.extensions.emoji.to_svg",
+      emoji_index = "zensical.extensions.emoji.twemoji", # (1)!
+    }
     ```
 
     1. [Python Markdown Extensions] uses the `pymdownx` namespace, but in order to
@@ -215,8 +222,10 @@ recommended due to [restrictions in licensing][Emoji index]:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.emoji]
-    emoji_index = "zensical.extensions.emoji.twemoji"
+    [project.markdown_extensions]
+    pymdownx.emoji = {
+      emoji_index = "zensical.extensions.emoji.twemoji",
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -235,8 +244,10 @@ that icons can only be used together with the `to_svg` configuration:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.emoji]
-    emoji_generator = "zensical.extensions.emoji.to_svg"
+    [project.markdown_extensions]
+    pymdownx.emoji = {
+      emoji_generator = "zensical.extensions.emoji.to_svg",
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -256,10 +267,14 @@ Markdown or the configuration, which is explained in more detail in the
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.emoji]
-    emoji_index = "zensical.extensions.emoji.twemoji"
-    emoji_generator = "zensical.extensions.emoji.to_svg"
-    options.custom_icons = ["overrides/.icons"]
+    [project.markdown_extensions]
+    pymdownx.emoji = {
+      emoji_generator = "zensical.extensions.emoji.to_svg",
+      emoji_index = "zensical.extensions.emoji.twemoji",
+      options.custom_icons = [
+        "overrides/.icons",
+      ],
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -267,8 +282,8 @@ Markdown or the configuration, which is explained in more detail in the
     ``` yaml
     markdown_extensions:
       - pymdownx.emoji:
-          emoji_index: !!python/name:material.extensions.emoji.twemoji
-          emoji_generator: !!python/name:material.extensions.emoji.to_svg
+          emoji_index: !!python/name:zensical.extensions.emoji.twemoji
+          emoji_generator: !!python/name:zensical.extensions.emoji.to_svg
           options:
             custom_icons:
               - overrides/.icons
@@ -293,9 +308,11 @@ The [Highlight] extension adds support for syntax highlighting of code blocks
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.highlight]
-    anchor_linenums = true
-    [project.markdown_extensions.pymdownx.superfences]
+    [project.markdown_extensions]
+    pymdownx.highlight = {
+      anchor_linenums = true,
+    }
+    pymdownx.superfences = {}
     ```
 
     1. [Highlight] is used by the [SuperFences][pymdownx.superfences] extension to
@@ -326,8 +343,10 @@ function. Enable via:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.highlight]
-    pygments_lang_class = true
+    [project.markdown_extensions]
+    pymdownx.highlight = {
+      pygments_lang_class = true,
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -346,8 +365,10 @@ the name of the language being used, e.g. `Python` is printed for a `py` block:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.highlight]
-    auto_title = true
+    [project.markdown_extensions]
+    pymdownx.highlight = {
+      auto_title = true,
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -368,8 +389,10 @@ which also contains some tips on working with line numbers:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.highlight]
-    linenums = true
+    [project.markdown_extensions]
+    pymdownx.highlight = {
+      linenums = true,
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -390,8 +413,10 @@ line itself:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.highlight]
-    linenums_style = "pymdownx-inline"
+    [project.markdown_extensions]
+    pymdownx.highlight = {
+      linenums_style = "pymdownx-inline",
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -417,8 +442,10 @@ with anchor links, so they can be hyperlinked and shared more easily:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.highlight]
-    anchor_linenums = true
+    [project.markdown_extensions]
+    pymdownx.highlight = {
+      anchor_linenums = true,
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -437,8 +464,10 @@ which is essential for features like line highlighting to work correctly:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.highlight]
-    line_spans = "__span"
+    [project.markdown_extensions]
+    pymdownx.highlight = {
+      line_spans = "__span",
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -470,8 +499,9 @@ which it sources its configuration. Enable it via:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.highlight]
-    [project.markdown_extensions.pymdownx.inlinehilite]
+    [project.markdown_extensions]
+    pymdownx.highlight = {}
+    pymdownx.inlinehilite = {}
     ```
 
 === "`mkdocs.yml`"
@@ -499,7 +529,8 @@ keys and combinations, e.g. ++ctrl+alt+del++. Enable it via:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.keys]
+    [project.markdown_extensions]
+    pymdownx.keys = {}
     ```
 
 === "`mkdocs.yml`"
@@ -526,7 +557,8 @@ corresponding symbols, e.g. copyright symbols or fractions. Enable it via:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.smartsymbols]
+    [project.markdown_extensions]
+    pymdownx.smartsymbols = {}
     ```
 
 === "`mkdocs.yml`"
@@ -549,7 +581,8 @@ syntax. Enable it via:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.snippets]
+    [project.markdown_extensions]
+    pymdownx.snippets = {}
     ```
 
 === "`mkdocs.yml`"
@@ -577,7 +610,8 @@ elements. Enable it via:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.superfences]
+    [project.markdown_extensions]
+    pymdownx.superfences = {}
     ```
 
 === "`mkdocs.yml`"
@@ -597,10 +631,16 @@ the definitions of [Mermaid.js] diagrams to be interpreted in the browser:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.superfences]
-    custom_fences = [
-      { name = "mermaid", class = "mermaid", format = "pymdownx.superfences.fence_code_format" }
-    ]
+    [project.markdown_extensions]
+    pymdownx.superfences = {
+      custom_fences = [
+        {
+          name = "mermaid",
+          class = "mermaid",
+          format = "pymdownx.superfences.fence_code_format",
+        },
+      ],
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -640,8 +680,11 @@ related content and code blocks under accessible tabs. Enable it via:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.tabbed]
-    alternate_style = true
+    [project.markdown_extensions]
+    pymdownx.tabbed = {
+      alternate_style = true,
+      combine_header_slug = true,
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -650,6 +693,7 @@ related content and code blocks under accessible tabs. Enable it via:
     markdown_extensions:
       - pymdownx.tabbed:
           alternate_style: true
+          combine_header_slug: true
     ```
 
 The following configuration options are supported:
@@ -662,8 +706,10 @@ behavior on mobile viewports], and is the only supported style:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.tabbed]
-    alternate_style = true
+    [project.markdown_extensions]
+    pymdownx.tabbed = {
+      alternate_style = true,
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -682,8 +728,10 @@ prepends the id of the header to the `id` of the tab:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.tabbed]
-    combine_header_slug = true
+    [project.markdown_extensions]
+    pymdownx.tabbed = {
+      combine_header_slug = true,
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -704,9 +752,13 @@ Markdown Extensions][Slugs]. To produce all-lowercase slugs:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.tabbed.slugify]
-    object = "pymdownx.slugs.slugify"
-    kwds = { case = "lower" }
+    [project.markdown_extensions]
+    pymdownx.tabbed = {
+      slugify = {
+        object = "pymdownx.slugs.slugify",
+        kwds.case = "lower",
+      },
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -724,8 +776,12 @@ In order to retain the case of the input:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.tabbed.slugify]
-    object = "pymdownx.slugs.slugify"
+    [project.markdown_extensions]
+    pymdownx.tabbed = {
+      slugify = {
+        object = "pymdownx.slugs.slugify"
+      },
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -755,8 +811,10 @@ conventions. Enable it via:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.tasklist]
-    custom_checkbox = true
+    [project.markdown_extensions]
+    pymdownx.tasklist = {
+      custom_checkbox = true,
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -777,8 +835,10 @@ checkbox styles with beautiful icons, and is therefore recommended:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.tasklist]
-    custom_checkbox = true
+    [project.markdown_extensions]
+    pymdownx.tasklist = {
+      custom_checkbox = true,
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -798,8 +858,10 @@ experience perspective:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.pymdownx.tasklist]
-    clickable_checkbox = true
+    [project.markdown_extensions]
+    pymdownx.tasklist = {
+      clickable_checkbox = true,
+    }
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/setup/extensions/python-markdown.md b/docs/setup/extensions/python-markdown.md
index 5d66bce..68fe0d9 100644
--- a/docs/setup/extensions/python-markdown.md
+++ b/docs/setup/extensions/python-markdown.md
@@ -25,7 +25,8 @@ supported. Enable it via:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.abbr]
+    [project.markdown_extensions]
+    abbr = {}
     ```
 
 === "`mkdocs.yml`"
@@ -50,7 +51,8 @@ it via:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.admonition]
+    [project.markdown_extensions]
+    admonition = {}
     ```
 
 === "`mkdocs.yml`"
@@ -77,7 +79,8 @@ element with a special syntax. Enable it via:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.attr_list]
+    [project.markdown_extensions]
+    attr_list = {}
     ```
 
 === "`mkdocs.yml`"
@@ -107,7 +110,8 @@ document. Enable it via:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.def_list]
+    [project.markdown_extensions]
+    def_list = {}
     ```
 
 === "`mkdocs.yml`"
@@ -130,7 +134,8 @@ rendered below all Markdown content of a document. Enable it via:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.footnotes]
+    [project.markdown_extensions]
+    footnotes = {}
     ```
 
 === "`mkdocs.yml`"
@@ -155,7 +160,8 @@ via:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.md_in_html]
+    [project.markdown_extensions]
+    md_in_html = {}
     ```
 
 === "`mkdocs.yml`"
@@ -186,8 +192,10 @@ page. Enable it via:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.toc]
-    permalink = true
+    [project.markdown_extensions]
+    toc = {
+      permalink = true,
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -209,8 +217,10 @@ the [site language]. Set the title explicitly via:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.toc]
-    title = "On this page"
+    [project.markdown_extensions]
+    toc = {
+      title = "On this page",
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -234,8 +244,10 @@ or string like so:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.toc]
-    permalink = "⚓︎"
+    [project.markdown_extensions]
+    toc = {
+      permalink = "⚓︎",
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -256,8 +268,10 @@ section itself:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.toc]
-    permalink_title = "Anchor link to this section"
+    [project.markdown_extensions]
+    toc = {
+      permalink_title = "Anchor link to this section",
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -278,9 +292,13 @@ Python Markdown Extensions][Slugs]:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.toc.slugify]
-    object = "pymdownx.slugs.slugify"
-    kwds = { case = "lower" }
+    [project.markdown_extensions]
+    toc = {
+      slugify = {
+        object = "pymdownx.slugs.slugify",
+        kwds.case = "lower",
+      },
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -302,8 +320,10 @@ headings to decrease the length of the table of contents:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.toc]
-    toc_depth = 3
+    [project.markdown_extensions]
+    toc = {
+      toc_depth = 3,
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -319,8 +339,10 @@ To remove the table of contents altogether:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.toc]
-    toc_depth = 0
+    [project.markdown_extensions]
+    toc = {
+      toc_depth = 0,
+    }
     ```
 
 === "`mkdocs.yml`"
@@ -345,7 +367,8 @@ simple syntax. Enable it via:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.tables]
+    [project.markdown_extensions]
+    tables = {}
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/setup/fonts.md b/docs/setup/fonts.md
index 177ca0e..4e6db2f 100644
--- a/docs/setup/fonts.md
+++ b/docs/setup/fonts.md
@@ -97,7 +97,9 @@ corresponding `@font-face` definition:
 
     ``` toml
     [project]
-    extra_css = ["stylesheets/extra.css"]
+    extra_css = [
+      "stylesheets/extra.css",
+    ]
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/setup/footer.md b/docs/setup/footer.md
index e234758..63c0b8f 100644
--- a/docs/setup/footer.md
+++ b/docs/setup/footer.md
@@ -24,7 +24,7 @@ configuration:
     ``` toml
     [project.theme]
     features = [
-        "navigation.footer"
+      "navigation.footer",
     ]
     ```
 
diff --git a/docs/setup/header.md b/docs/setup/header.md
index c15590b..52c0962 100644
--- a/docs/setup/header.md
+++ b/docs/setup/header.md
@@ -24,7 +24,7 @@ following lines to your configuration:
     ``` toml
     [project.theme]
     features = [
-        "header.autohide"
+      "header.autohide",
     ]
     ```
 
@@ -63,7 +63,7 @@ your configuration:
     ``` toml
     [project.theme]
     features = [
-        "announce.dismiss"
+      "announce.dismiss",
     ]
     ```
 
diff --git a/docs/setup/language.md b/docs/setup/language.md
index 8402bae..5a3452f 100644
--- a/docs/setup/language.md
+++ b/docs/setup/language.md
@@ -49,8 +49,8 @@ can be defined via configuration:
     ``` toml
     [project.extra]
     alternate = [
-        { name = "English", link = "/en/", lang = "en" },
-        { name = "Deutsch", link = "/de/", lang = "de" }
+      { name = "English", link = "/en/", lang = "en" },
+      { name = "Deutsch", link = "/de/", lang = "de" },
     ]
     ```
 
diff --git a/docs/setup/logo-and-icons.md b/docs/setup/logo-and-icons.md
index 9428164..fb6a158 100644
--- a/docs/setup/logo-and-icons.md
+++ b/docs/setup/logo-and-icons.md
@@ -159,10 +159,14 @@ your project documentation. The structure of your project should look like this:
     [project.theme]
     custom_dir = "overrides"
 
-    [project.markdown_extensions.pymdownx.emoji]
-    emoji_index = "zensical.extensions.emoji.twemoji"
-    emoji_generator = "zensical.extensions.emoji.to_svg"
-    options.custom_icons = ["overrides/.icons"]
+    [project.markdown_extensions]
+    pymdownx.emoji = {
+      emoji_generator = "zensical.extensions.emoji.to_svg",
+      emoji_index = "zensical.extensions.emoji.twemoji",
+      options.custom_icons = [
+        "overrides/.icons",
+      ],
+    }
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/setup/navigation.md b/docs/setup/navigation.md
index 2dde032..832546e 100644
--- a/docs/setup/navigation.md
+++ b/docs/setup/navigation.md
@@ -35,7 +35,7 @@ the content itself. The paths need to be relative to the [`docs_dir`][docs_dir].
     [project]
     nav = [
       "index.md",
-      "about.md"
+      "about.md",
     ]
     ```
 
@@ -55,8 +55,8 @@ for a page, you can also explicitly specify a title:
     ``` toml
     [project]
     nav = [
-      {"Home" = "index.md"},
-      {"About" = "about.md"}
+      { "Home" = "index.md" },
+      { "About" = "about.md" },
     ]
     ```
 
@@ -78,12 +78,12 @@ your users to the information they require.
     ``` toml
     [project]
     nav = [
-      {"Home" = "index.md"},
-      {"About" = [
-         "about/index.md",
-         "about/vision.md",
-         "about/team.md"
-      ]}
+      { "Home" = "index.md" },
+      { "About" = [
+        "about/index.md",
+        "about/vision.md",
+        "about/team.md",
+      ] },
     ]
     ```
 
@@ -108,7 +108,7 @@ string that cannot be resolved to a Markdown page is treated as a URL.
     ``` toml
     [project]
     nav = [
-      {"GitHub Repo" = "https://github.com/zensical/docs"}
+      { "GitHub Repo" = "https://github.com/zensical/docs" },
     ]
     ```
 
@@ -133,7 +133,7 @@ the following lines to your configuration:
     ``` toml
     [project.theme]
     features = [
-        "navigation.instant"
+      "navigation.instant",
     ]
     ```
 
@@ -168,8 +168,8 @@ immediately upon navigation. Enable it with:
     ``` toml
     [project.theme]
     features = [
-        "navigation.instant",
-        "navigation.instant.prefetch"
+      "navigation.instant",
+      "navigation.instant.prefetch",
     ]
     ```
 
@@ -194,8 +194,8 @@ enable it in your configuration with:
     ``` toml
     [project.theme]
     features = [
-        "navigation.instant",
-        "navigation.instant.progress"
+      "navigation.instant",
+      "navigation.instant.progress",
     ]
     ```
 
@@ -246,12 +246,14 @@ instant previews on a per-page or per-section level for your documentation:
 === "`zensical.toml`"
 
     ``` toml
-    [project.markdown_extensions.zensical.extensions.preview]
-    configurations = [
-        { targets.include = [
-            "customization.md",
-            "setup/extensions/*"
-        ]}
+    [project.markdown_extensions]
+    zensical.extensions.preview.configurations = [
+      {
+        targets.include = [
+          "customization.md",
+          "setup/extensions/*",
+        ]
+      },
     ]
     ```
 
@@ -259,7 +261,7 @@ instant previews on a per-page or per-section level for your documentation:
 
     ``` yaml
     markdown_extensions:
-      - material.extensions.preview:
+      - zensical.extensions.preview:
           configurations:
             - targets:
                 include:
@@ -276,18 +278,26 @@ extensions in the setup guide.
     === "`zensical.toml`"
 
         ``` toml
-        [[project.markdown_extensions.zensical.extensions.preview.configurations]]
-        sources.include = [...]
-        sources.exclude = [...]
-        targets.include = [...]
-        targets.exclude = [...]
+        [project.markdown_extensions]
+        zensical.extensions.preview.configurations = [
+          {
+            sources = {
+              include = [],
+              exclude = [],
+            }, # (1)!
+            targets = {
+              include = [],
+              exclude = [],
+            }, # (2)!
+          },
+        ]
         ```
 
     === "`mkdocs.yml`"
 
         ``` yaml
         markdown_extensions:
-          - material.extensions.preview:
+          - zensical.extensions.preview:
               configurations:
                 - sources: # (1)!
                     include:
@@ -333,7 +343,7 @@ following lines to your configuration:
     ``` toml
     [project.theme]
     features = [
-        "navigation.tracking"
+      "navigation.tracking",
     ]
     ```
 
@@ -356,7 +366,7 @@ following lines to your configuration:
     ``` toml
     [project.theme]
     features = [
-        "navigation.tabs"
+      "navigation.tabs",
     ]
     ```
 
@@ -389,8 +399,8 @@ flags to your configuration:
     ``` toml
     [project.theme]
     features = [
-        "navigation.tabs",
-        "navigation.tabs.sticky"
+      "navigation.tabs",
+      "navigation.tabs.sticky",
     ]
     ```
 
@@ -414,7 +424,7 @@ following lines to your configuration:
     ``` toml
     [project.theme]
     features = [
-        "navigation.sections"
+      "navigation.sections",
     ]
     ```
 
@@ -451,7 +461,7 @@ Add the following lines to your configuration:
     ``` toml
     [project.theme]
     features = [
-        "navigation.expand"
+      "navigation.expand",
     ]
     ```
 
@@ -485,7 +495,7 @@ your configuration:
     ``` toml
     [project.theme]
     features = [
-        "navigation.path"
+      "navigation.path",
     ]
     ```
 
@@ -518,7 +528,7 @@ following lines to your configuration:
     ``` toml
     [project.theme]
     features = [
-        "navigation.prune" # (1)!
+      "navigation.prune", # (1)!
     ]
     ```
 
@@ -554,7 +564,7 @@ following lines to your configuration:
     ``` toml
     [project.theme]
     features = [
-        "navigation.indexes" # (1)!
+      "navigation.indexes", # (1)!
     ]
     ```
 
@@ -581,13 +591,12 @@ navigation section:
     ``` toml
     [project]
     nav = [
-        {"Section" = [
-            "section/index.md", # (1)!
-            {"Page 1" = "section/page-1.md"},
-            ...
-            {"Page n" = "section/page-n.md"}
-
-        ]}
+      { "Section" = [
+        "section/index.md", # (1)!
+        { "Page 1" = "section/page-1.md" },
+        # ...
+        { "Page n" = "section/page-n.md" },
+      ] },
     ]
     ```
 
@@ -600,7 +609,7 @@ navigation section:
       - Section:
         - section/index.md # (1)!
         - Page 1: section/page-1.md
-        ...
+        # ...
         - Page n: section/page-n.md
     ```
 
@@ -619,7 +628,7 @@ following lines to your configuration:
     ``` toml
     [project.theme]
     features = [
-        "toc.follow"
+      "toc.follow",
     ]
     ```
 
@@ -642,7 +651,7 @@ to your configuration:
     ``` toml
     [project.theme]
     features = [
-        "toc.integrate" # (1)!
+      "toc.integrate", # (1)!
     ]
     ```
 
@@ -683,7 +692,7 @@ following lines to your configuration:
     ``` toml
     [project.theme]
     features = [
-        "navigation.top"
+      "navigation.top",
     ]
     ```
 
@@ -764,7 +773,9 @@ of CSS:
 
     ``` toml
     [project]
-    extra_css = ["stylesheets/extra.css"]
+    extra_css = [
+      "stylesheets/extra.css",
+    ]
     ```
 
 === "`mkdocs.yml`"
diff --git a/docs/setup/offline.md b/docs/setup/offline.md
index 019976d..cf16d90 100644
--- a/docs/setup/offline.md
+++ b/docs/setup/offline.md
@@ -82,17 +82,23 @@ in `extra.polyfills`:
 
 ``` toml
 [project.extra]
-polyfills = ["js/iframe-worker-shim.js"]
+polyfills = [
+  "js/iframe-worker-shim.js",
+]
 ```
 
 or
 
 ``` toml
-[[project.extra.polyfills]]
-path = "js/iframe-worker-shim.js"
-type = "text/javascript"
-async = false
-defer = false
+[project.extra]
+polyfills = [
+  {
+    path = "js/iframe-worker-shim.js",
+    type = "text/javascript",
+    async = false,
+    defer = false,
+  },
+]
 ```
 
 Here it is assumed the asset is in a `js/` folder in your configured `docs/` directory:
diff --git a/docs/setup/repository.md b/docs/setup/repository.md
index f8c1134..08b9430 100644
--- a/docs/setup/repository.md
+++ b/docs/setup/repository.md
@@ -107,7 +107,7 @@ features:
     [project.theme]
     features = [
       "content.action.edit", # Edit this page
-      "content.action.view"  # View source of this page
+      "content.action.view", # View source of this page
     ]
     ```
 
diff --git a/docs/setup/search.md b/docs/setup/search.md
index 7ca56e4..deca04f 100644
--- a/docs/setup/search.md
+++ b/docs/setup/search.md
@@ -44,7 +44,7 @@ Add the following lines to your configuration:
     ``` toml
     [project.theme]
     features = [
-        "search.highlight"
+      "search.highlight",
     ]
     ```
 
diff --git a/docs/setup/versioning.md b/docs/setup/versioning.md
index 31443fa..010e650 100644
--- a/docs/setup/versioning.md
+++ b/docs/setup/versioning.md
@@ -86,7 +86,10 @@ to your configuration:
 
         ``` toml
         [project.extra.version]
-        default = ["stable", "development"]
+        default = [
+          "stable",
+          "development",
+        ]
         ```
 
         Now every version that has the `stable` and `development` aliases will not