diff --git a/functions/functions.php b/functions/functions.php
index 026a2ea..602a54e 100644
--- a/functions/functions.php
+++ b/functions/functions.php
@@ -108,6 +108,8 @@ function mdExceptionHandler(Throwable $exception):void {
     <meta name="description" content="Validate import CSV files for museum-digital" />
     <link rel="manifest" href="./manifest.webmanifest" />
     <link rel="stylesheet" type="text/css" href="assets/css/csvxml.min.css" />
+    <meta name="theme-color" content="#aa4400" />
+    <meta name="robots" content="noindex" />
     <link rel="shortcut icon" sizes="128x128" href="assets/img/mdlogo-csvxml.svg" />';
         $output .= '
     <title>Error :: ';
@@ -189,10 +191,11 @@ function printHTMLHead(string $injected = ""):string {
     <meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
     <meta name="description" content="Validate import CSV files for museum-digital" />
 
-    <meta name="theme-color" content="#FFF" />
     <link rel="stylesheet" type="text/css" href="assets/css/csvxml.min.css" />
+    <meta name="theme-color" content="#aa4400" />
     <link rel="shortcut icon" sizes="128x128" href="assets/img/mdlogo-csvxml.svg" />
     <script src="assets/js/csvxml-overview.min.js" type="text/javascript" defer></script>
+    <meta name="robots" content="noindex" />
 
     <title>CSVXML :: museum-digital</title>