dropdown for product variant picker

snippets/product-variant-picker.liquid

@@ -200,6 +200,20 @@
             }
           }
         });
+
+        // Set the initial value when the page loads
+        window.addEventListener('load', function() {
+          const selectedValue = selectElement.value;
+          selectedButton.innerText = selectedValue;
+      
+          document.querySelectorAll('.shx-custom-dropdown-content div').forEach(div => {
+            if (div.getAttribute('data-value') === selectedValue) {
+              div.classList.add('shx-custom-selected-variant');
+            } else {
+              div.classList.remove('shx-custom-selected-variant');
+            }
+          });
+        });
       </script>
 
       {%- if picker_type == 'swatch' -%}