diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index 8c9faa5..0557035 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -95,3 +95,4 @@
 - [Alphonse Mariya](https://github.com/alfunx)
 - [Ziwei Pan](https://github.com/PanZiwei/)
 - [Viktar Patotski](https://github.com/xp-vit)
+- [cuso4-5h2o](https://www.cuso4.me)
diff --git a/layouts/_default/baseof.html b/layouts/_default/baseof.html
index f28ddea..7e7b996 100644
--- a/layouts/_default/baseof.html
+++ b/layouts/_default/baseof.html
@@ -5,6 +5,8 @@
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <meta http-equiv="Content-Language" content="{{ .Site.Language.Lang }}">
+    <meta name="color-scheme" content="light dark">
+    
     {{ if .Site.Params.csp }}
       {{ partial "csp.html" . }}
     {{ end }}