Add automatic color palette

Signed-off-by: Federico Busetti <729029+febus982@users.noreply.github.com>

Author: febus982

mkdocs.yml

@@ -29,12 +29,10 @@ theme:
     - content.code.copy
 
   palette:
-    # Palette toggle for light mode
-    - scheme: default
-      media: "(prefers-color-scheme: light)"
-      primary: teal
+    # Palette toggle for automatic mode
+    - media: "(prefers-color-scheme)"
       toggle:
-        icon: material/brightness-7
+        icon: material/brightness-auto
         name: Switch to dark mode
 
     # Palette toggle for dark mode
@@ -45,6 +43,14 @@ theme:
         icon: material/brightness-4
         name: Switch to light mode
 
+    # Palette toggle for light mode
+    - scheme: default
+      media: "(prefers-color-scheme: light)"
+      primary: teal
+      toggle:
+        icon: material/brightness-7
+        name: Switch to auto mode
+
 extra:
   social:
     - icon: fontawesome/brands/linkedin