Add something resembling a logo.

docs/source/conf.py

@@ -47,8 +47,14 @@ nitpicky = True
 # -- Options for HTML output -------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#options-for-html-output
 
-html_theme = "furo"
-# html_static_path = ['_static']
+html_theme = "sphinx_book_theme"
+html_static_path = ['_static']
+html_theme_options = {
+   "logo": {
+      "image_light": "_static/sfg-logo-light.svg",
+      "image_dark": "_static/sfg-logo-dark.svg",
+   }
+}
 
 #   Intersphinx