Improvements:

* [#461660] by kenorb and brmassa: 'set default settings for charts' instead of 'access administration pages' access

charts.module

@@ -42,7 +42,7 @@ function charts_chart_types() {
  */
 function charts_menu() {
   $items['admin/settings/charts'] = array(
-    'access arguments'  => array('access administration pages'),
+    'access arguments'  => array('set default settings for charts'),
     'description'     => 'Set the default behaviour and look of all your charts',
     'file'            => 'charts.admin.inc',
     'page callback'   => 'drupal_get_form',
@@ -52,6 +52,13 @@ function charts_menu() {
   return $items;
 }
 
+/**
+ * Implementation of hook_perm().
+ */
+function charts_perm() {
+  return array('set default settings for charts');
+}
+
 /**
  * Implementation of hook_requirements().
  */