diff --git a/docs/conf.py b/docs/conf.py
index 68a5c97..8ced84e 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -81,6 +81,7 @@
 exclude_patterns = ["_build", "Thumbs.db", ".DS_Store"]
 
 # -- Options for HTML output -------------------------------------------------
+# If HTML theme settings isn't lines 86-110, remember to change customization.rst
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
@@ -91,8 +92,6 @@
 # so a file named 'default.css' will overwrite the builtin 'default.css'.
 html_static_path = ["_static"]
 
-# If HTML theme settings isn't lines 90-160, remember to change customization.rst
-
 # -- HTML theme settings ------------------------------------------------
 html_show_sourcelink = True
 html_sidebars = {
@@ -109,7 +108,7 @@
     "mda_official": True,
 }
 
-# If HTML theme settings isn't lines 90-160, remember to change customization.rst
+# If HTML theme settings isn't lines 86-110, remember to change customization.rst
 
 language = "en"
 html_last_updated_fmt = ""
diff --git a/docs/customization.rst b/docs/customization.rst
index 492c170..e6f6786 100644
--- a/docs/customization.rst
+++ b/docs/customization.rst
@@ -10,8 +10,8 @@ This site's options are:
 
 .. literalinclude:: conf.py
    :language: python
-   :lines: 90-160
-   :lineno-start: 90
+   :lines: 86-110
+   :lineno-start: 86
    :linenos:
 
 Many of these settings are provided in this site as examples; for a minimalistic example, see :ref:`quickstart`.
@@ -19,52 +19,21 @@ Many of these settings are provided in this site as examples; for a minimalistic
 Configuration Options
 =====================
 
-``google_analytics_account``
-   Set to enable google analytics.
+Listed below are important customisation options for the `mdanalysis-sphinx-theme`.
+Please see the `sphinx-rtd-theme configuration`_ documentation for more
+information on other options.
+
 ``repo_url``
    Set the repo url for the link to appear.
 ``repo_name``
    The name of the repo.
    It must be set if repo_url is set.
-``repo_type``
-   Must be one of github, gitlab or bitbucket.
-``globaltoc_depth``
-   The maximum depth of the global TOC; set it to -1 to allow unlimited depth.
-``globaltoc_collapse``
-   If true, TOC entries that are not ancestors of the current page are collapsed.
-``globaltoc_includehidden``
-   If true, the global TOC tree will also contain hidden entries.
-``globaltoc_include_local``
-   If true, the global TOC tree will include the current page's localtoc entries if the localtoc is not rendered on the page
+``mda_official``
+   Whether to use official MDA branding, e.g. its logo
 ``color_accent``
-   Accent color. Options are ``openff-blue``, ``openff-toolkit-blue``,
-   ``openff-yellow``, ``openff-orange``, ``aquamarine``, ``lilac``,
-   ``amaranth``, ``grape``, ``violet``, ``pink``, ``pale-green``, ``green``,
-   ``crimson``, ``eggplant``, ``turquoise``, or any valid CSS color.
-``html_hyphenate_and_justify``
-   If true, hyphenate and justify prose content. Doesn't affect API docs.
-   Quality of hyphenation will vary from browser to browser.
-``html_minify``
-   Minify pages after creation using htmlmin.
-``html_prettify``
-   Prettify pages. Just for debugging, this will change how the page is rendered.
+   Accent color. Choose any valid CSS color, or `mdanalysis-orange`.
 ``css_minify``
    Minify css files found in the output directory.
-``master_doc``
-   Include the master document at the top of the page in the breadcrumb bar.
-``nav_links``
-   A list of dictionaries where each has three keys:
-
-   - ``href``: The URL or pagename (str)
-   - ``title``: The title to appear (str)
-   - ``internal``: Flag indicating to use pathto to find the page.  Set to False for external content. (bool)
-``heroes``
-   A ``dict[str,str]`` where the key is a pagename and the value is the text to display in the page's hero location.
-``socials``
-   ``list[dict[str, str]]`` of social media links.
-   Dicts have three keys: ``"href"``, ``"icon_classes"``, and optionally ``"title"``.
-   Icon classes should be from `Academicons <https://jpswalsh.github.io/academicons/>`_ or `Font Awesome 5 <https://fontawesome.com/>`_.
-   If not specified, defaults to a set of links appropriate for an OpenFF Initiative project.
 
 Sidebars
 ========
@@ -121,13 +90,5 @@ Finally, edit your override file ``source/_templates/layout.html``:
     {{ super() }}
     {%- endblock %}
 
-New Blocks
-==========
-The theme has a small number of new blocks to simplify some types of
-customization:
-
-``footerrel``
-   Previous and next in the footer.
-``fonticon``
-   Block that contains the icon font. You should probably call ``{{ super() }}`` at the end of the block to include the default icon fonts as well. (Font Awesome and Academicons)
 
+.. _`sphinx-rtd-theme configuration`: https://sphinx-rtd-theme.readthedocs.io/en/stable/configuring.html
\ No newline at end of file