diff --git a/_config.yml b/_config.yml
index b825afe..255f750 100644
--- a/_config.yml
+++ b/_config.yml
@@ -141,7 +141,8 @@ yat:
 # it will be always kept on every visit (i.e. no matter
 # the browser is closed or not)
 #
-night_mode: "on"
+# night_mode: "on"
+theme_mode: dark
 
 # Code badge setting
 # You can enable or disable the code badge and so on
diff --git a/_layouts/default.html b/_layouts/default.html
index f8e8e6b..bf33ac8 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -11,7 +11,7 @@
 
     {%- include extensions/hashlocate.html -%}
 
-    {%- include extensions/theme-toggle.html -%}
+    <!-- {%- include extensions/theme-toggle.html -%} -->
 
     {%- include extensions/click-to-top.html -%}