diff --git a/2023/js/main.js b/2023/js/main.js
index ab72f011..7f92deac 100644
--- a/2023/js/main.js
+++ b/2023/js/main.js
@@ -486,6 +486,10 @@ $(document).ready(function() {
         }
     }
 
+    if (!localStorage.getItem('halloween')) {
+        localStorage.setItem('halloween', "true");
+        localStorage.setItem('theme', "Halloween");
+    } 
     saved_theme = localStorage.getItem('theme');
     if (saved_theme) {
         $(`#theme_mobile option[value='${saved_theme}']`).prop('selected', true).change();
@@ -1568,6 +1572,7 @@ function logout() {
     localStorage.removeItem("username");
     localStorage.removeItem("authToken");
     localStorage.removeItem("balance_history");
+    localStorage.removeItem("halloween");
     location.reload()
 }
 
@@ -3091,15 +3096,23 @@ $("#theme_desktop").on('change', function() {
     if (selected_theme == "Terminal") {
         $("#theme-terminal").attr('disabled', false);
         $("#theme-glossy").attr('disabled', true);
+        $("#theme-halloween").attr('disabled', true);
         localStorage.setItem('theme', 'Terminal');
     } else if (selected_theme == "Glossy") {
         $("#theme-terminal").attr('disabled', true);
         $("#theme-glossy").attr('disabled', false);
+        $("#theme-halloween").attr('disabled', true);
         localStorage.setItem('theme', 'Glossy');
+    } else if (selected_theme == "Halloween") {
+        $("#theme-terminal").attr('disabled', true);
+        $("#theme-glossy").attr('disabled', true);
+        $("#theme-halloween").attr('disabled', false);
+        localStorage.setItem('theme', 'Halloween');
     } else {
         // default adaptive - disable all
         $("#theme-terminal").attr('disabled', true);
         $("#theme-glossy").attr('disabled', true);
+        $("#theme-halloween").attr('disabled', true);
         localStorage.setItem('theme', 'Adaptive');
     }
 });
@@ -3110,15 +3123,23 @@ $("#theme_mobile").on('change', function() {
     if (selected_theme == "Terminal") {
         $("#theme-terminal").attr('disabled', false);
         $("#theme-glossy").attr('disabled', true);
+        $("#theme-halloween").attr('disabled', true);
         localStorage.setItem('theme', 'Terminal');
     } else if (selected_theme == "Glossy") {
         $("#theme-terminal").attr('disabled', true);
         $("#theme-glossy").attr('disabled', false);
+        $("#theme-halloween").attr('disabled', true);
         localStorage.setItem('theme', 'Glossy');
+    } else if (selected_theme == "Halloween") {
+        $("#theme-terminal").attr('disabled', true);
+        $("#theme-glossy").attr('disabled', true);
+        $("#theme-halloween").attr('disabled', false);
+        localStorage.setItem('theme', 'Halloween');
     } else {
         // default adaptive - disable all
         $("#theme-terminal").attr('disabled', true);
         $("#theme-glossy").attr('disabled', true);
+        $("#theme-halloween").attr('disabled', true);
         localStorage.setItem('theme', 'Adaptive');
     }
 });