diff --git a/config.toml b/config.toml
index 5fcf09a..f57e6ca 100644
--- a/config.toml
+++ b/config.toml
@@ -10,11 +10,8 @@ DefaultContentLanguage = "en-us" # Explicitly set the default
     languageName = "English"
     weight = 1
 
-# Enable syntax highlighting
-pygmentsCodeFences = true
-pygmentsUseClasses = true
 
-# Additional settings
+# Theme Parameters
 paginate = 10
 summaryLength = 30
 enableEmoji = true
@@ -44,6 +41,10 @@ enableEmoji = true
     name = "Posts"
     url = "/post/"
     weight = 2
+
+[markup]
+  [markup.highlight]
+    noClasses = false # Ensures CSS classes are used for highlighting
     
 # Default publish directory is 'public', which is what Coolify expects for static sites.
 # No need to explicitly set publishDir = "public" unless you change it.
diff --git a/themes/lightbi/layouts/partials/nav.html b/themes/lightbi/layouts/partials/nav.html
index a7d2192..4d24ac3 100644
--- a/themes/lightbi/layouts/partials/nav.html
+++ b/themes/lightbi/layouts/partials/nav.html
@@ -42,7 +42,7 @@
 
 
             <!-- Language Switcher -->    
-            {{ if hugo.IsMultilingual }}
+            {{ if .Site.IsMultilingual }}
               {{ with .AllTranslations }}
               <li class="nav-item dropdown">
                 <button class="p-1 bg-light rounded dropdown-toggle border " data-bs-toggle="dropdown" aria-expanded="false">