Instacart, while still in implementation, came to their AE (J.Jones) with some access issues. Some of these templates don't work yet (internal server errors) but backing them up just in case

Custom_Templates/customer_templates/Instacart/master.html.liquid

@@ -0,0 +1,61 @@
+{% include "header" %}
+{% body %}
+
+<style>
+  body[user-lang="es"] .lang-en {
+    display: none !important;
+  }
+
+  body[user-lang="en"] .lang-es {
+    display: none !important;
+  }
+</style>
+
+<script>
+  let lang = '{{current_person.properties.preferred_language}}'
+    const langFromQuery = window.location.search.split('lang=')[1];
+    if (langFromQuery) {
+      lang = langFromQuery;
+    }
+
+  // Set user-lang attribute on body
+  document.body.setAttribute('user-lang', lang ? lang : 'en');
+
+  function updateFilter(filterId) {
+
+    const select = document.querySelector('#filter-dropdown-' + filterId + ' .np-filter-select');
+    const label = document.querySelector('#filter-dropdown-' + filterId + ' .filter-value-label');
+    
+    if (select && label) {
+      const selectedOptions = Array.from(select.selectedOptions);
+      const selectedCount = selectedOptions.length;
+      const selectedValues = selectedOptions.map(option => option.value);
+      
+      if (selectedCount === 0) {
+        // Set language-specific "All" text
+        const allTextEn = label.querySelector('.lang-en');
+        const allTextEs = label.querySelector('.lang-es');
+        if (allTextEn && allTextEs) {
+          allTextEn.innerText = 'All';
+          allTextEs.innerText = 'Todos';
+        } else {
+          label.innerText = lang === 'es' ? 'Todos' : 'All';
+        }
+      } else {
+        // Set language-specific "selected" text
+        const selectedText = lang === 'es' ? `${selectedCount} seleccionados` : `${selectedCount} selected`;
+        label.textContent = selectedText;
+      }
+      
+      // Fire custom event at the end
+      const filterUpdateEvent = new CustomEvent('filterUpdate', {
+        detail: {
+          filterId: filterId,
+          selectedValues: selectedValues
+        }
+      });
+      
+      document.dispatchEvent(filterUpdateEvent);
+    }
+  }
+</script>