diff --git a/Template-01/src/components/layout/ThemeListener.tsx b/Template-01/src/components/layout/ThemeListener.tsx
new file mode 100644
index 0000000..138b795
--- /dev/null
+++ b/Template-01/src/components/layout/ThemeListener.tsx
@@ -0,0 +1,72 @@
+import { useEffect } from 'react';
+
+export function ThemeListener() {
+  useEffect(() => {
+    const handleMessage = (event: any) => {
+      if (event.data?.type === 'UPDATE_APPEARANCE') {
+        const settings = event.data.settings;
+        if (!settings) return;
+
+        let css = '';
+
+        if (settings.primaryColor) {
+           css += "\n:root { " +
+             "--color-brand-primary: " + settings.primaryColor + " !important; " +
+             "--color-brand-blue: " + settings.primaryColor + " !important; " +
+             "--color-brand-gold: " + settings.primaryColor + " !important; " +
+             "--color-blue-500: " + settings.primaryColor + " !important; " +
+             "--color-blue-600: " + settings.primaryColor + " !important; " +
+             "--color-emerald-500: " + settings.primaryColor + " !important; " +
+             "--color-emerald-600: " + settings.primaryColor + " !important; " +
+             "} " +
+             ".text-brand-blue, .text-blue-600, .group-hover\\:text-blue-600:hover, .text-brand-gold, .text-emerald-600, .text-blue-500, .text-emerald-500 { color: " + settings.primaryColor + " !important; } " +
+             ".bg-brand-blue, .bg-blue-600, .hover\\:bg-blue-500:hover, .bg-brand-gold, .bg-emerald-600, .bg-blue-500, .bg-emerald-500 { background-color: " + settings.primaryColor + " !important; } " +
+             ".border-brand-blue, .border-blue-600, .focus\\:border-blue-600:focus, .border-brand-gold, .border-emerald-600, .border-blue-500, .border-emerald-500 { border-color: " + settings.primaryColor + " !important; } " +
+             ".fill-blue-600, .fill-emerald-600 { fill: " + settings.primaryColor + " !important; }";
+        }
+        
+        if (settings.backgroundColor) {
+           css += "\n:root { --color-brand-bg: " + settings.backgroundColor + " !important; } " +
+                  "body { background-color: " + settings.backgroundColor + " !important; }";
+        }
+
+        if (settings.fontFamily) {
+          const fontLink = document.getElementById('dynamic-font');
+          const fontName = settings.fontFamily.replace(/ /g, '+');
+          const fontUrl = 'https://fonts.googleapis.com/css2?family=' + fontName + ':wght@300;400;500;600;700&display=swap';
+          if (fontLink) {
+            (fontLink as HTMLLinkElement).href = fontUrl;
+          } else {
+            const link = document.createElement('link');
+            link.id = 'dynamic-font';
+            link.rel = 'stylesheet';
+            link.href = fontUrl;
+            document.head.appendChild(link);
+          }
+          
+          css += "\n:root { " +
+            "--font-sans: \"" + settings.fontFamily + "\", sans-serif !important; " +
+            "--font-serif: \"" + settings.fontFamily + "\", serif !important; " +
+            "--font-mono: \"" + settings.fontFamily + "\", monospace !important; " +
+          "} " +
+          "body, h1, h2, h3, h4, h5, h6, .font-serif, .font-sans, .font-mono, p, span, a, button { " +
+            "font-family: \"" + settings.fontFamily + "\", sans-serif !important; " +
+          "}";
+        }
+
+        let styleNode = document.getElementById('dynamic-theme-style');
+        if (!styleNode) {
+           styleNode = document.createElement('style');
+           styleNode.id = 'dynamic-theme-style';
+           document.head.appendChild(styleNode);
+        }
+        styleNode.innerHTML = css;
+      }
+    };
+    
+    window.addEventListener('message', handleMessage);
+    return () => window.removeEventListener('message', handleMessage);
+  }, []);
+
+  return null;
+}
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