diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
new file mode 100644
index 000000000..e8ad847b8
--- /dev/null
+++ b/.devcontainer/devcontainer.json
@@ -0,0 +1,11 @@
+// container instruction for codespace users
+{
+  "name": "Python 3",
+  "image": "mcr.microsoft.com/devcontainers/python:1-3.10-bullseye",
+  "features": {
+    "ghcr.io/devcontainers-contrib/features/nox:2": {},
+    "ghcr.io/devcontainers-contrib/features/pre-commit:2": {},
+    "ghcr.io/rocker-org/devcontainer-features/pandoc:1": {}
+  },
+  "postCreateCommand": "pre-commit install"
+}
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 178005863..3a797d44b 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -134,7 +134,9 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
-      - uses: nikeee/setup-pandoc@v1
+      # waiting for https://github.com/nikeee/setup-pandoc/pull/8
+      # using 12rambau fork until then
+      - uses: 12rambau/setup-pandoc@test
       - name: Setup Python
         uses: actions/setup-python@v4
         with:
diff --git a/docs/conf.py b/docs/conf.py
index 9fbca8c83..e8d564a63 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -161,7 +161,6 @@
     "logo": {
         "text": "PyData Theme",
         "image_dark": "_static/logo-dark.svg",
-        "alt_text": "PyData Theme",
     },
     "use_edit_page_button": True,
     "show_toc_level": 1,
diff --git a/docs/examples/gallery.md b/docs/examples/gallery.md
index e344ee969..888b6d416 100644
--- a/docs/examples/gallery.md
+++ b/docs/examples/gallery.md
@@ -43,4 +43,6 @@ Thanks for your support!
   link: https://docs.pyvista.org
 - title: Pastas
   link: https://pastas.readthedocs.io/
+- title: DecentralChain
+  link: https://docs.decentralchain.io/en/master/
 ```
diff --git a/docs/examples/pydata.ipynb b/docs/examples/pydata.ipynb
index 34a8da267..742a0b7c3 100644
--- a/docs/examples/pydata.ipynb
+++ b/docs/examples/pydata.ipynb
@@ -37,20 +37,6 @@
     "## Matplotlib"
    ]
   },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {
-    "nbsphinx": "hidden"
-   },
-   "outputs": [],
-   "source": [
-    "import matplotlib\n",
-    "\n",
-    "# avoid warnings upon doc build\n",
-    "matplotlib.set_loglevel(\"critical\")"
-   ]
-  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -69,11 +55,6 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "import matplotlib.pyplot as plt\n",
-    "import numpy as np\n",
-    "\n",
-    "matplotlib.set_loglevel(\"critical\")\n",
-    "\n",
     "rng = np.random.default_rng()\n",
     "data = rng.standard_normal((3, 100))\n",
     "fig, ax = plt.subplots()\n",
diff --git a/package.json b/package.json
index f992c9a7a..e767243ef 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
   "devDependencies": {
     "axe-core": "^4.6.3",
     "copy-webpack-plugin": "^11.0.0",
-    "css-loader": "^3.4.2",
+    "css-loader": "^6.8.1",
     "css-minimizer-webpack-plugin": "^4.2.2",
     "dedent": "^0.7.0",
     "html-webpack-plugin": "^4.3.0",
diff --git a/src/pydata_sphinx_theme/assets/styles/components/_search.scss b/src/pydata_sphinx_theme/assets/styles/components/_search.scss
index 8a7a6bf4a..91ed09eb2 100644
--- a/src/pydata_sphinx_theme/assets/styles/components/_search.scss
+++ b/src/pydata_sphinx_theme/assets/styles/components/_search.scss
@@ -53,6 +53,7 @@
 
 .form-control {
   background-color: var(--pst-color-background);
+  color: var(--pst-color-text-base);
 
   &:focus,
   &:focus-visible {
diff --git a/src/pydata_sphinx_theme/locale/ru/LC_MESSAGES/sphinx.po b/src/pydata_sphinx_theme/locale/ru/LC_MESSAGES/sphinx.po
new file mode 100644
index 000000000..0ab80aef9
--- /dev/null
+++ b/src/pydata_sphinx_theme/locale/ru/LC_MESSAGES/sphinx.po
@@ -0,0 +1,165 @@
+# English translations for pydata-sphinx-theme.
+# Copyright (C) 2023 PyData developers
+# This file is distributed under the same license as the pydata-sphinx-theme project.
+# 
+# Translators:
+# Rambaud Pierrick <pierrick.rambaud49@gmail.com>, 2023
+# 
+msgid ""
+msgstr ""
+"Project-Id-Version: PROJECT VERSION\n"
+"Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
+"POT-Creation-Date: 2023-02-16 14:32-0500\n"
+"PO-Revision-Date: 2023-04-14 14:57+0000\n"
+"Last-Translator: Rambaud Pierrick <pierrick.rambaud49@gmail.com>, 2023\n"
+"Language-Team: Russian (https://app.transifex.com/12rambau/teams/166811/ru/)\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Generated-By: Babel 2.11.0\n"
+"Language: ru\n"
+"Plural-Forms: nplurals=4; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<12 || n%100>14) ? 1 : n%10==0 || (n%10>=5 && n%10<=9) || (n%100>=11 && n%100<=14)? 2 : 3);\n"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/layout.html:50
+msgid "Skip to main content"
+msgstr "Перейти к основному содержанию"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/search-button.html:7
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/search.html:5
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/search.html:28
+msgid "Search"
+msgstr "Поиск"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/search.html:8
+msgid "Error"
+msgstr "Ошибка"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/search.html:9
+msgid "Please activate JavaScript to enable the search functionality."
+msgstr "Активируйте JavaScript, чтобы включить функцию поиска."
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/breadcrumbs.html:12
+msgid "Breadcrumbs"
+msgstr "Навигационная цепочка"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/breadcrumbs.html:13
+msgid "Breadcrumb"
+msgstr "Хлебная крошка"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/breadcrumbs.html:16
+msgid "Home"
+msgstr "Главная"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/copyright.html:4
+#, python-format
+msgid "© <a href=\"%(path)s\">Copyright</a> %(copyright)s."
+msgstr "© <a href=\\\"%(path)s\\\">Копирайт</a> %(copyright)s."
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/copyright.html:7
+#, python-format
+msgid "© Copyright %(copyright)s."
+msgstr "© Копирайт %(copyright)s."
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/edit-this-page.html:9
+#, python-format
+msgid "Edit on %(provider)s"
+msgstr "Редактировать на %(provider)s"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/edit-this-page.html:11
+msgid "Edit"
+msgstr "Редактировать"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/icon-links.html:31
+msgid "GitHub"
+msgstr "GitHub"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/icon-links.html:32
+msgid "GitLab"
+msgstr "GitLab"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/icon-links.html:33
+msgid "Bitbucket"
+msgstr "Bitbucket"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/icon-links.html:34
+msgid "Twitter"
+msgstr "Twitter"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/indices.html:2
+msgid "Indices"
+msgstr ""
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/indices.html:9
+msgid "General Index"
+msgstr "Общий указатель"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/indices.html:13
+msgid "Global Module Index"
+msgstr "Глобальный индекс модулей"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/indices.html:17
+msgid "Python Module Index"
+msgstr "Индекс модулей Python"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/last-updated.html:2
+#, python-format
+msgid "Last updated on %(last_updated)s."
+msgstr "Последнее обновление %(last_updated)s."
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/navbar-nav.html:5
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/navbar-nav.html:6
+msgid "Site Navigation"
+msgstr "Навигация по сайту"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/page-toc.html:4
+msgid "On this page"
+msgstr "На этой странице"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/sidebar-nav-bs.html:2
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/sidebar-nav-bs.html:3
+msgid "Section Navigation"
+msgstr "В этом разделе"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/sourcelink.html:4
+msgid "Show Source"
+msgstr "Просмотр исходного кода"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/sphinx-version.html:3
+#, python-format
+msgid ""
+"Created using <a href=\"https://www.sphinx-doc.org/\">Sphinx</a> "
+"%(sphinx_version)s."
+msgstr ""
+"Создано с помощью <a href=\\\"https://www.sphinx-doc.org/\\\">Sphinx</a> "
+"%(sphinx_version)s."
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/theme-switcher.html:5
+msgid "light/dark"
+msgstr "светлая/темная"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/theme-version.html:2
+#, python-format
+msgid ""
+"Built with the <a href=\"https://pydata-sphinx-"
+"theme.readthedocs.io/en/stable/index.html\">PyData Sphinx Theme</a> "
+"%(theme_version)s."
+msgstr ""
+"Собрано с использованием темы <a href=\\\"https://pydata-sphinx-"
+"theme.readthedocs.io/en/stable/index.html\\\">PyData Sphinx</a> "
+"%(theme_version)s."
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/footer-article/prev-next.html:6
+msgid "previous page"
+msgstr "предыдущая страница"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/footer-article/prev-next.html:9
+msgid "previous"
+msgstr "назад"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/footer-article/prev-next.html:17
+msgid "next page"
+msgstr "следующая страница"
+
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/footer-article/prev-next.html:19
+msgid "next"
+msgstr "далее"
diff --git a/src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/version-switcher.html b/src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/version-switcher.html
index 5d07b9336..7f5ee9327 100644
--- a/src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/version-switcher.html
+++ b/src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/version-switcher.html
@@ -1,14 +1,24 @@
-{# As the version switcher will only work when JavaScript is enabled, we add it through JavaScript.
- #}
+{%- set button_id = unique_html_id("pst-version-switcher-button") -%}
+{%- set dropdown_id = unique_html_id("pst-version-switcher-list") -%}
+{# As the version switcher will only work when JavaScript is enabled, we add it through JavaScript. #}
 <script>
 document.write(`
   <div class="version-switcher__container dropdown">
-    <button id="versionswitcherbutton" type="button" role="button" class="version-switcher__button btn btn-sm navbar-btn dropdown-toggle" data-bs-toggle="dropdown" aria-haspopup="listbox" aria-controls="versionswitcherlist" aria-label="Version switcher list">
+    <button id="{{ button_id }}"
+      type="button"
+      class="version-switcher__button btn btn-sm navbar-btn dropdown-toggle"
+      data-bs-toggle="dropdown"
+      aria-haspopup="listbox"
+      aria-controls="{{ dropdown_id }}"
+      aria-label="Version switcher list"
+    >
       Choose version  <!-- this text may get changed later by javascript -->
       <span class="caret"></span>
     </button>
-    <div id="versionswitcherlist" class="version-switcher__menu dropdown-menu list-group-flush py-0" role="listbox" aria-labelledby="versionswitcherbutton">
-    <!-- dropdown will be populated by javascript on page load -->
+    <div id="{{ dropdown_id }}"
+      class="version-switcher__menu dropdown-menu list-group-flush py-0"
+      role="listbox" aria-labelledby="{{ button_id }}">
+      <!-- dropdown will be populated by javascript on page load -->
     </div>
   </div>
 `);
diff --git a/src/pydata_sphinx_theme/toctree.py b/src/pydata_sphinx_theme/toctree.py
index f7b4eee0e..94a0d9b48 100644
--- a/src/pydata_sphinx_theme/toctree.py
+++ b/src/pydata_sphinx_theme/toctree.py
@@ -1,7 +1,8 @@
 """Methods to build the toctree used in the html pages."""
 
 from functools import lru_cache
-from typing import List, Union
+from itertools import count
+from typing import Iterator, List, Union
 from urllib.parse import urlparse
 
 import sphinx
@@ -37,27 +38,24 @@ def add_toctree_functions(
     """Add functions so Jinja templates can add toctree objects."""
 
     @lru_cache(maxsize=None)
-    def generate_header_nav_html(
-        n_links_before_dropdown: int = 5, dropdown_text: str = "More"
-    ) -> str:
-        """Generate top-level links that are meant for the header navigation.
-
-        We use this function instead of the TocTree-based one used for the
-        sidebar because this one is much faster for generating the links and
-        we don't need the complexity of the full Sphinx TocTree.
-
-        This includes two kinds of links:
-
-        - Links to pages described listed in the root_doc TocTrees
-        - External links defined in theme configuration
+    def get_or_create_id_generator(base_id: str) -> Iterator[str]:
+        for n in count(start=1):
+            if n == 1:
+                yield base_id
+            else:
+                yield f"{base_id}-{n}"
 
-        Additionally it will create a dropdown list for several links after
-        a cutoff.
+    def unique_html_id(base_id: str):
+        """Create an id that is unique from other ids created by this function at build time.
 
-        Parameters:
-            n_links_before_dropdown:The number of links to show before nesting the remaining links in a Dropdown element.
-            dropdown_text:Text of the dropdown element button.
+        The function works by sequentially returning "<base_id>", "<base_id>-2",
+        "<base_id>-3", etc. each time it is called.
         """
+        return next(get_or_create_id_generator(base_id))
+
+    @lru_cache(maxsize=None)
+    def generate_header_nav_before_dropdown(n_links_before_dropdown):
+        """The cacheable part."""
         try:
             n_links_before_dropdown = int(n_links_before_dropdown)
         except Exception:
@@ -148,14 +146,42 @@ def generate_header_nav_html(
             for html in links_html[n_links_before_dropdown:]
         ]
 
+        return out, links_dropdown
+
+    def generate_header_nav_html(
+        n_links_before_dropdown: int = 5, dropdown_text: str = "More"
+    ) -> str:
+        """Generate top-level links that are meant for the header navigation.
+
+        We use this function instead of the TocTree-based one used for the
+        sidebar because this one is much faster for generating the links and
+        we don't need the complexity of the full Sphinx TocTree.
+
+        This includes two kinds of links:
+
+        - Links to pages described listed in the root_doc TocTrees
+        - External links defined in theme configuration
+
+        Additionally it will create a dropdown list for several links after
+        a cutoff.
+
+        Parameters:
+            n_links_before_dropdown:The number of links to show before nesting the remaining links in a Dropdown element.
+            dropdown_text:Text of the dropdown element button.
+        """
+        out, links_dropdown = generate_header_nav_before_dropdown(
+            n_links_before_dropdown
+        )
+
         if links_dropdown:
+            dropdown_id = unique_html_id("pst-nav-more-links")
             links_dropdown_html = "\n".join(links_dropdown)
             out += f"""
             <li class="nav-item dropdown">
-                <button class="btn dropdown-toggle nav-item" type="button" data-bs-toggle="dropdown" aria-expanded="false" aria-controls="pst-header-nav-more-links">
+                <button class="btn dropdown-toggle nav-item" type="button" data-bs-toggle="dropdown" aria-expanded="false" aria-controls="{dropdown_id}">
                     {_(dropdown_text)}
                 </button>
-                <ul id="pst-header-nav-more-links" class="dropdown-menu">
+                <ul id="{dropdown_id}" class="dropdown-menu">
                     {links_dropdown_html}
                 </ul>
             </li>
@@ -314,6 +340,7 @@ def navbar_align_class() -> List[str]:
             )
         return align_options[align]
 
+    context["unique_html_id"] = unique_html_id
     context["generate_header_nav_html"] = generate_header_nav_html
     context["generate_toctree_html"] = generate_toctree_html
     context["generate_toc_html"] = generate_toc_html
diff --git a/src/pydata_sphinx_theme/utils.py b/src/pydata_sphinx_theme/utils.py
index 9fccaea6f..db56af9f4 100644
--- a/src/pydata_sphinx_theme/utils.py
+++ b/src/pydata_sphinx_theme/utils.py
@@ -1,5 +1,6 @@
 """General helpers for the management of config parameters."""
 
+import re
 from typing import Any, Dict, Iterator
 
 from docutils.nodes import Node
@@ -39,3 +40,9 @@ def traverse_or_findall(node: Node, condition: str, **kwargs) -> Iterator[Node]:
         if hasattr(node, "findall")
         else node.traverse(condition, **kwargs)
     )
+
+
+def escape_ansi(string: str) -> str:
+    """Helper function to remove ansi coloring from sphinx warnings."""
+    ansi_escape = re.compile(r"(\x9B|\x1B\[)[0-?]*[ -\/]*[@-~]")
+    return ansi_escape.sub("", string)
diff --git a/tests/intermittent_warning_list.txt b/tests/intermittent_warning_list.txt
new file mode 100644
index 000000000..0f3d90d76
--- /dev/null
+++ b/tests/intermittent_warning_list.txt
@@ -0,0 +1,2 @@
+WARNING: Cell printed to stderr:
+Matplotlib is building the font cache; this may take a moment.
diff --git a/tests/test_build.py b/tests/test_build.py
index 32d949d01..f22ec1f8c 100644
--- a/tests/test_build.py
+++ b/tests/test_build.py
@@ -5,12 +5,7 @@
 
 import pytest
 import sphinx.errors
-
-
-def escape_ansi(string: str) -> str:
-    """Helper function to remove ansi coloring from sphinx warnings."""
-    ansi_escape = re.compile(r"(\x9B|\x1B\[)[0-?]*[ -\/]*[@-~]")
-    return ansi_escape.sub("", string)
+from pydata_sphinx_theme.utils import escape_ansi
 
 
 def test_build_html(sphinx_build_factory, file_regression) -> None:
diff --git a/tests/test_build/navbar_switcher.html b/tests/test_build/navbar_switcher.html
index 8084a3918..c2e27f78b 100644
--- a/tests/test_build/navbar_switcher.html
+++ b/tests/test_build/navbar_switcher.html
@@ -1,12 +1,21 @@
 <script>
  document.write(`
   <div class="version-switcher__container dropdown">
-    <button id="versionswitcherbutton" type="button" role="button" class="version-switcher__button btn btn-sm navbar-btn dropdown-toggle" data-bs-toggle="dropdown" aria-haspopup="listbox" aria-controls="versionswitcherlist" aria-label="Version switcher list">
+    <button id="pst-version-switcher-button-2"
+      type="button"
+      class="version-switcher__button btn btn-sm navbar-btn dropdown-toggle"
+      data-bs-toggle="dropdown"
+      aria-haspopup="listbox"
+      aria-controls="pst-version-switcher-list-2"
+      aria-label="Version switcher list"
+    >
       Choose version  <!-- this text may get changed later by javascript -->
       <span class="caret"></span>
     </button>
-    <div id="versionswitcherlist" class="version-switcher__menu dropdown-menu list-group-flush py-0" role="listbox" aria-labelledby="versionswitcherbutton">
-    <!-- dropdown will be populated by javascript on page load -->
+    <div id="pst-version-switcher-list-2"
+      class="version-switcher__menu dropdown-menu list-group-flush py-0"
+      role="listbox" aria-labelledby="pst-version-switcher-button-2">
+      <!-- dropdown will be populated by javascript on page load -->
     </div>
   </div>
 `);
diff --git a/tests/utils/check_warnings.py b/tests/utils/check_warnings.py
index 9e790b835..726a81c7b 100644
--- a/tests/utils/check_warnings.py
+++ b/tests/utils/check_warnings.py
@@ -4,6 +4,7 @@
 from pathlib import Path
 
 from colorama import Fore, init
+from pydata_sphinx_theme.utils import escape_ansi
 
 # init colors for all plateforms
 init()
@@ -27,30 +28,37 @@ def check_warnings(file: Path) -> bool:
 
     # find the file where all the known warnings are stored
     warning_file = Path(__file__).parent.parent / "warning_list.txt"
+    extra_warning_file = Path(__file__).parent.parent / "intermittent_warning_list.txt"
 
-    test_warnings = file.read_text().strip().split("\n")
-    ref_warnings = warning_file.read_text().strip().split("\n")
+    received_warnings = escape_ansi(file.read_text()).strip().split("\n")
+    expected_warnings = warning_file.read_text().strip().split("\n")
+    intermittent_warnings = extra_warning_file.read_text().strip().split("\n")
+    # filter out empty warnings (happens on notebooks for some reason)
+    received_warnings = list(filter(len, received_warnings))
 
     print(
         f'Checking build warnings in file: "{file}" and comparing to expected '
-        f'warnings defined in "{warning_file}"\n\n'
+        f'warnings defined in "{warning_file}" and "{extra_warning_file}"\n\n'
     )
 
-    # find all the missing warnings
-    missing_warnings = []
-    for wa in ref_warnings:
-        index = [i for i, twa in enumerate(test_warnings) if wa in twa]
-        if len(index) == 0:
-            missing_warnings += [wa]
-            print(f"{Fore.YELLOW}Warning was not raised: {Fore.RESET}{wa}\n")
-        else:
-            test_warnings.pop(index[0])
-
-    # the remaining one are unexpected
-    for twa in test_warnings:
-        print(f"{Fore.YELLOW}Unexpected warning: {Fore.RESET}{twa}\n")
-
-    return len(missing_warnings) != 0 or len(test_warnings) != 0
+    for exp_w in expected_warnings[::-1] + intermittent_warnings[::-1]:
+        found = False
+        for rec_w in received_warnings:
+            if exp_w in rec_w:
+                received_warnings.remove(rec_w)
+                if exp_w in expected_warnings:
+                    expected_warnings.remove(exp_w)
+                elif exp_w in intermittent_warnings:
+                    intermittent_warnings.remove(exp_w)
+                found = True
+                break
+        # alert only if an *always expected* warning wasn't raised (not intermittent)
+        if not found and exp_w not in intermittent_warnings:
+            print(f"{Fore.YELLOW}Warning was not raised: {Fore.RESET}{exp_w}\n")
+    # warn about unexpected warnings
+    for rec_w in received_warnings[::-1]:
+        print(f"{Fore.YELLOW}Unexpected warning: {Fore.RESET}{rec_w}\n")
+    return len(received_warnings) or len(expected_warnings)
 
 
 if __name__ == "__main__":
diff --git a/tools/github_actions_install.sh b/tools/github_actions_install.sh
index 521e87b7f..be93503f8 100755
--- a/tools/github_actions_install.sh
+++ b/tools/github_actions_install.sh
@@ -8,12 +8,8 @@ if [[ "$SPHINX_VERSION" == "" ]]; then
     SPHINX_INSTALL=""
 elif [[ "$SPHINX_VERSION" == "dev" ]]; then
     SPHINX_INSTALL="git+https://github.com/sphinx-doc/sphinx"
-    if [[ "$1" == "doc" ]]; then
-        # Until they release a new version that undoes the max sphinx pin...
-        DEP_EXTRA="git+https://github.com/executablebooks/MyST-NB"
-    fi
 elif [[ "$SPHINX_VERSION" == "old" ]]; then
-    SPHINX_INSTALL="sphinx==5.0"
+    SPHINX_INSTALL="sphinx==6.1.0"
 else  # not used currently but easy enough
     SPHINX_INSTALL="sphinx==$SPHINX_VERSION"
 fi
diff --git a/webpack.config.js b/webpack.config.js
index e11951d1a..ff56828ec 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -159,7 +159,7 @@ module.exports = {
       test: /\.scss$/,
       use: [
         {loader: MiniCssExtractPlugin.loader},
-        {loader: "css-loader?-url"}, //url()-inlining turned off
+        {loader: "css-loader", options: { url: false }},
         {loader: "sass-loader",},
       ],
     }],