Add custom logo and custom styles

_static/css/agaric.css

@@ -0,0 +1,8 @@
+.wy-side-nav-search {
+  background-color: #26599b;
+}
+
+.wy-side-nav-search .wy-dropdown > a img.logo,
+.wy-side-nav-search > a img.logo {
+  width: 12rem;
+}

conf.py

@@ -88,12 +88,21 @@ pygments_style = 'sphinx'
 # a list of builtin themes.
 #
 html_theme = 'sphinx_rtd_theme'
+html_logo = 'images/agaric-logo-horizontal-white.svg'
+html_css_files = [
+    'css/agaric.css',
+]
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
 # documentation.
 #
-# html_theme_options = {}
+# TIP: If it starts with `html_` it belongs directly as a conf.py option and
+# NOT in html_theme_options.
+html_theme_options = {
+    'canonical_url': 'https://docs.agaric.coop/',
+    'logo_only': True,
+}
 
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,

index.md

@@ -1,6 +1,6 @@
 # Welcome to Agaric Collective's documentation!
 
-```{image} agaric-logo-horizontal.svg
+```{image} images/agaric-logo-horizontal.svg
 :width: 240px
 :alt: Agaric logo (two mushrooms reminiscent of the cooperative trees)
 :align: center