diff --git a/docs/conf.py b/docs/conf.py
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+++ b/docs/conf.py
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+# -*- coding: utf-8 -*-
+
+import sys
+import os
+import re
+
+# Prefer to use the version of the theme in this repo
+# and not the installed version of the theme.
+sys.path.insert(0, os.path.abspath('..'))
+sys.path.append(os.path.abspath('./demo/'))
+
+from sphinx_rtd_theme import __version__ as theme_version
+from sphinx_rtd_theme import __version_full__ as theme_version_full
+from sphinx.locale import _
+
+project = u'Read the Docs Sphinx Theme'
+slug = re.sub(r'\W+', '-', project.lower())
+version = theme_version
+release = theme_version_full
+author = u'Dave Snider, Read the Docs, Inc. & contributors'
+copyright = author
+language = 'en'
+
+extensions = [
+    'sphinx.ext.intersphinx',
+    'sphinx.ext.autodoc',
+    'sphinx.ext.autosummary',
+    'sphinx.ext.mathjax',
+    'sphinx.ext.viewcode',
+    'sphinx_rtd_theme',
+]
+
+templates_path = ['_templates']
+source_suffix = '.rst'
+exclude_patterns = []
+locale_dirs = ['locale/']
+gettext_compact = False
+
+master_doc = 'index'
+suppress_warnings = ['image.nonlocal_uri']
+pygments_style = 'default'
+
+if sys.version_info < (3, 0):
+    tags.add("python2")
+else:
+    tags.add("python3")
+
+intersphinx_mapping = {
+    'rtd': ('https://docs.readthedocs.io/en/stable/', None),
+    'rtd-dev': ('https://dev.readthedocs.io/en/stable/', None),
+    'sphinx': ('https://www.sphinx-doc.org/en/master/', None),
+}
+
+html_theme = 'sphinx_rtd_theme'
+html_theme_options = {
+    'logo_only': True,
+    'navigation_depth': 5,
+}
+html_context = {}
+
+if not 'READTHEDOCS' in os.environ:
+    html_static_path = ['_static/']
+    html_js_files = ['debug.js']
+
+    # Add fake versions for local QA of the menu
+    html_context['test_versions'] = list(map(
+        lambda x: str(x / 10),
+        range(1, 100)
+    ))
+
+html_logo = "demo/static/logo-wordmark-light.svg"
+html_show_sourcelink = True
+html_favicon = "demo/static/favicon.ico"
+
+htmlhelp_basename = slug
+
+
+latex_documents = [
+  ('index', '{0}.tex'.format(slug), project, author, 'manual'),
+]
+
+man_pages = [
+    ('index', slug, project, [author], 1)
+]
+
+texinfo_documents = [
+  ('index', slug, project, author, slug, project, 'Miscellaneous'),
+]
+
+
+# Extensions to theme docs
+def setup(app):
+    from sphinx.domains.python import PyField
+    from sphinx.util.docfields import Field
+
+    app.add_object_type(
+        'confval',
+        'confval',
+        objname='configuration value',
+        indextemplate='pair: %s; configuration value',
+        doc_field_types=[
+            PyField(
+                'type',
+                label=_('Type'),
+                has_arg=False,
+                names=('type',),
+                bodyrolename='class'
+            ),
+            Field(
+                'default',
+                label=_('Default'),
+                has_arg=False,
+                names=('default',),
+            ),
+        ]
+    )