diff --git a/phpBB/adm/style/acp_main.html b/phpBB/adm/style/acp_main.html
index 3bfa7602c7..4b6bc1910d 100644
--- a/phpBB/adm/style/acp_main.html
+++ b/phpBB/adm/style/acp_main.html
@@ -22,8 +22,7 @@
 	<!-- ENDIF -->
 
 	<!-- IF S_WRITABLE_CONFIG -->
-		<div class="errorbox">
-			<h3>{L_WARNING}</h3>
+		<div class="errorbox notice">
 			<p>{L_WRITABLE_CONFIG}</p>
 		</div>
 	<!-- ENDIF -->
diff --git a/phpBB/adm/style/admin.css b/phpBB/adm/style/admin.css
index 219ff20eba..344b5cacf0 100644
--- a/phpBB/adm/style/admin.css
+++ b/phpBB/adm/style/admin.css
@@ -1175,6 +1175,10 @@ input.disabled {
 	font-weight: bold;
 }
 
+.notice {
+	background-color: #62A5CC;
+}
+
 /* Special cases for the error page */
 #errorpage #page-header a {
 	font-weight: bold;
diff --git a/phpBB/includes/acp/acp_main.php b/phpBB/includes/acp/acp_main.php
index 2b932ebeeb..8c3f3f4c63 100644
--- a/phpBB/includes/acp/acp_main.php
+++ b/phpBB/includes/acp/acp_main.php
@@ -487,7 +487,8 @@ class acp_main
 
 		if (file_exists($phpbb_root_path . 'config.' . $phpEx) && is_writable($phpbb_root_path . 'config.' . $phpEx))
 		{
-			$template->assign_var('S_WRITABLE_CONFIG', true);
+			// World-Writable? (000x)
+			$template->assign_var('S_WRITABLE_CONFIG', (bool) (@fileperms($phpbb_root_path . 'config.' . $phpEx) & 0x0002));
 		}
 
 		$this->tpl_name = 'acp_main';