diff --git a/root/usr/libexec/rpcd/luci.argon b/root/usr/libexec/rpcd/luci.argon
index 9a9468b..be50fb9 100755
--- a/root/usr/libexec/rpcd/luci.argon
+++ b/root/usr/libexec/rpcd/luci.argon
@@ -3,6 +3,21 @@
 . /lib/functions.sh
 . /usr/share/libubox/jshn.sh
 
+ local argon_mode=$(uci get argon.@global[0].mode 2>/dev/null)
+ local css_path="/www/luci-static/resources/view/dashboard/css/custom.css"
+    
+ if [[ "$argon_mode" == "dark" ]]; then
+     echo "Applying dark mode..."
+     rm -f "$css_path"
+     cp -f /etc/dark.css "$css_path"
+ elif [[ "$argon_mode" == "light" ]]; then
+     echo "Applying light mode..."
+     rm -f "$css_path"
+     cp -f /etc/light.css "$css_path"
+ else
+     echo "The Argon theme mode is set to normal or is undefined. No changes made."
+fi
+
 readonly bg_path="/www/luci-static/argon/background"
 readonly tmp_path="/tmp/argon_background.tmp"