diff --git a/classes/event/user_created.php b/classes/event/user_created.php
index eb128e5..94ae7fc 100644
--- a/classes/event/user_created.php
+++ b/classes/event/user_created.php
@@ -52,7 +52,7 @@ public function get_description() {
      */
     protected function init() {
         $this->context = \context_system::instance();
-        $this->data['crud'] = 'r';
+        $this->data['crud'] = 'c';
         $this->data['edulevel'] = self::LEVEL_OTHER;
         $this->data['objecttable'] = 'user';
     }
diff --git a/classes/form/adminsetting/iconselect.css b/classes/form/adminsetting/iconselect.css
new file mode 100644
index 0000000..6fe4121
--- /dev/null
+++ b/classes/form/adminsetting/iconselect.css
@@ -0,0 +1,26 @@
+label.iconselect {
+    display: inline-block !important;
+    padding: 0 !important;
+    margin: 5px;
+}
+label.iconselect img {
+    width: 25px;
+    height: 25px;
+    padding: 10px;
+}
+input.iconselect {
+    display: none;
+}
+input[type="radio"].iconselect:checked + label.iconselect {
+    outline: 1px solid #007fec;
+}
+body.ie input.iconselect {
+    display: inline-block;
+}
+body.ie label.iconselect {
+    margin-left: 0;
+    margin-right: 20px;
+}
+body.ie label.iconselect img {
+    padding: 5px;
+}
\ No newline at end of file
diff --git a/classes/form/adminsetting/iconselect.php b/classes/form/adminsetting/iconselect.php
index b14b2c6..f28da02 100644
--- a/classes/form/adminsetting/iconselect.php
+++ b/classes/form/adminsetting/iconselect.php
@@ -86,35 +86,9 @@ public function write_setting($data) {
      * @return string The setting HTML.
      */
     public function output_html($data, $query = '') {
-        global $OUTPUT;
-        $html = '<style>
-            label.iconselect {
-                display: inline-block !important;
-                padding: 0 !important;
-                margin: 5px;
-            }
-            label.iconselect img {
-                width: 25px;
-                height: 25px;
-                padding: 10px;
-            }
-            input.iconselect {
-                display: none;
-            }
-            input[type="radio"].iconselect:checked + label.iconselect {
-                outline: 1px solid #007fec;
-            }
-            body.ie input.iconselect {
-                display: inline-block;
-            }
-            body.ie label.iconselect {
-                margin-left: 0;
-                margin-right: 20px;
-            }
-            body.ie label.iconselect img {
-                padding: 5px;
-            }
-        </style>';
+        global $CFG, $OUTPUT;
+        $attrs = array('type' => 'text/css', 'rel' => 'stylesheet', 'href' => new \moodle_url('/auth/oidc/classes/form/adminsetting/iconselect.css'));
+        $html = \html_writer::empty_tag('link', $attrs);
         $html .= \html_writer::start_tag('div', ['style' => 'max-width: 390px']);
         $selected = (!empty($data)) ? $data : $this->defaultsetting;
         foreach ($this->choices as $icon) {
diff --git a/settings.php b/settings.php
index 5db82ce..1729f9c 100644
--- a/settings.php
+++ b/settings.php
@@ -23,146 +23,146 @@
 
 require_once(__DIR__.'/lib.php');
 
-$configkey = get_string('cfg_opname_key', 'auth_oidc');
-$configdesc = get_string('cfg_opname_desc', 'auth_oidc');
-$configdefault = get_string('pluginname', 'auth_oidc');
+$configkey = new lang_string('cfg_opname_key', 'auth_oidc');
+$configdesc = new lang_string('cfg_opname_desc', 'auth_oidc');
+$configdefault = new lang_string('pluginname', 'auth_oidc');
 $settings->add(new admin_setting_configtext('auth_oidc/opname', $configkey, $configdesc, $configdefault, PARAM_TEXT));
 
-$configkey = get_string('cfg_clientid_key', 'auth_oidc');
-$configdesc = get_string('cfg_clientid_desc', 'auth_oidc');
+$configkey = new lang_string('cfg_clientid_key', 'auth_oidc');
+$configdesc = new lang_string('cfg_clientid_desc', 'auth_oidc');
 $settings->add(new admin_setting_configtext('auth_oidc/clientid', $configkey, $configdesc, '', PARAM_TEXT));
 
-$configkey = get_string('cfg_clientsecret_key', 'auth_oidc');
-$configdesc = get_string('cfg_clientsecret_desc', 'auth_oidc');
+$configkey = new lang_string('cfg_clientsecret_key', 'auth_oidc');
+$configdesc = new lang_string('cfg_clientsecret_desc', 'auth_oidc');
 $settings->add(new admin_setting_configtext('auth_oidc/clientsecret', $configkey, $configdesc, '', PARAM_TEXT));
 
-$configkey = get_string('cfg_authendpoint_key', 'auth_oidc');
-$configdesc = get_string('cfg_authendpoint_desc', 'auth_oidc');
+$configkey = new lang_string('cfg_authendpoint_key', 'auth_oidc');
+$configdesc = new lang_string('cfg_authendpoint_desc', 'auth_oidc');
 $configdefault = 'https://login.microsoftonline.com/common/oauth2/authorize';
 $settings->add(new admin_setting_configtext('auth_oidc/authendpoint', $configkey, $configdesc, $configdefault, PARAM_TEXT));
 
-$configkey = get_string('cfg_tokenendpoint_key', 'auth_oidc');
-$configdesc = get_string('cfg_tokenendpoint_desc', 'auth_oidc');
+$configkey = new lang_string('cfg_tokenendpoint_key', 'auth_oidc');
+$configdesc = new lang_string('cfg_tokenendpoint_desc', 'auth_oidc');
 $configdefault = 'https://login.microsoftonline.com/common/oauth2/token';
 $settings->add(new admin_setting_configtext('auth_oidc/tokenendpoint', $configkey, $configdesc, $configdefault, PARAM_TEXT));
 
-$configkey = get_string('cfg_oidcresource_key', 'auth_oidc');
-$configdesc = get_string('cfg_oidcresource_desc', 'auth_oidc');
+$configkey = new lang_string('cfg_oidcresource_key', 'auth_oidc');
+$configdesc = new lang_string('cfg_oidcresource_desc', 'auth_oidc');
 $configdefault = 'https://graph.windows.net';
 $settings->add(new admin_setting_configtext('auth_oidc/oidcresource', $configkey, $configdesc, $configdefault, PARAM_TEXT));
 
-$configkey = get_string('cfg_redirecturi_key', 'auth_oidc');
-$configdesc = get_string('cfg_redirecturi_desc', 'auth_oidc');
+$configkey = new lang_string('cfg_redirecturi_key', 'auth_oidc');
+$configdesc = new lang_string('cfg_redirecturi_desc', 'auth_oidc');
 $settings->add(new \auth_oidc\form\adminsetting\redirecturi('auth_oidc/redirecturi', $configkey, $configdesc));
 
-$configkey = get_string('cfg_autoappend_key', 'auth_oidc');
-$configdesc = get_string('cfg_autoappend_desc', 'auth_oidc');
+$configkey = new lang_string('cfg_autoappend_key', 'auth_oidc');
+$configdesc = new lang_string('cfg_autoappend_desc', 'auth_oidc');
 $configdefault = '';
 $settings->add(new admin_setting_configtext('auth_oidc/autoappend', $configkey, $configdesc, $configdefault, PARAM_TEXT));
 
-$configkey = get_string('cfg_domainhint_key', 'auth_oidc');
-$configdesc = get_string('cfg_domainhint_desc', 'auth_oidc');
+$configkey = new lang_string('cfg_domainhint_key', 'auth_oidc');
+$configdesc = new lang_string('cfg_domainhint_desc', 'auth_oidc');
 $configdefault = '';
 $settings->add(new admin_setting_configtext('auth_oidc/domainhint', $configkey, $configdesc, $configdefault, PARAM_TEXT));
 
-$configkey = get_string('cfg_loginflow_key', 'auth_oidc');
+$configkey = new lang_string('cfg_loginflow_key', 'auth_oidc');
 $configdesc = '';
 $configdefault = 'authcode';
 $settings->add(new \auth_oidc\form\adminsetting\loginflow('auth_oidc/loginflow', $configkey, $configdesc, $configdefault));
 
-$configkey = get_string('cfg_userrestrictions_key', 'auth_oidc');
-$configdesc = get_string('cfg_userrestrictions_desc', 'auth_oidc');
+$configkey = new lang_string('cfg_userrestrictions_key', 'auth_oidc');
+$configdesc = new lang_string('cfg_userrestrictions_desc', 'auth_oidc');
 $configdefault = '';
 $settings->add(new admin_setting_configtextarea('auth_oidc/userrestrictions', $configkey, $configdesc, $configdefault, PARAM_TEXT));
 
-$label = get_string('cfg_debugmode_key', 'auth_oidc');
-$desc = get_string('cfg_debugmode_desc', 'auth_oidc');
+$label = new lang_string('cfg_debugmode_key', 'auth_oidc');
+$desc = new lang_string('cfg_debugmode_desc', 'auth_oidc');
 $settings->add(new \admin_setting_configcheckbox('auth_oidc/debugmode', $label, $desc, '0'));
 
-$configkey = get_string('cfg_icon_key', 'auth_oidc');
-$configdesc = get_string('cfg_icon_desc', 'auth_oidc');
+$configkey = new lang_string('cfg_icon_key', 'auth_oidc');
+$configdesc = new lang_string('cfg_icon_desc', 'auth_oidc');
 $configdefault = 'auth_oidc:o365';
 $icons = [
     [
         'pix' => 'o365',
-        'alt' => get_string('cfg_iconalt_o365', 'auth_oidc'),
+        'alt' => new lang_string('cfg_iconalt_o365', 'auth_oidc'),
         'component' => 'auth_oidc',
     ],
     [
         'pix' => 't/locked',
-        'alt' => get_string('cfg_iconalt_locked', 'auth_oidc'),
+        'alt' => new lang_string('cfg_iconalt_locked', 'auth_oidc'),
         'component' => 'moodle',
     ],
     [
         'pix' => 't/lock',
-        'alt' => get_string('cfg_iconalt_lock', 'auth_oidc'),
+        'alt' => new lang_string('cfg_iconalt_lock', 'auth_oidc'),
         'component' => 'moodle',
     ],
     [
         'pix' => 't/go',
-        'alt' => get_string('cfg_iconalt_go', 'auth_oidc'),
+        'alt' => new lang_string('cfg_iconalt_go', 'auth_oidc'),
         'component' => 'moodle',
     ],
     [
         'pix' => 't/stop',
-        'alt' => get_string('cfg_iconalt_stop', 'auth_oidc'),
+        'alt' => new lang_string('cfg_iconalt_stop', 'auth_oidc'),
         'component' => 'moodle',
     ],
     [
         'pix' => 't/user',
-        'alt' => get_string('cfg_iconalt_user', 'auth_oidc'),
+        'alt' => new lang_string('cfg_iconalt_user', 'auth_oidc'),
         'component' => 'moodle',
     ],
     [
         'pix' => 'u/user35',
-        'alt' => get_string('cfg_iconalt_user2', 'auth_oidc'),
+        'alt' => new lang_string('cfg_iconalt_user2', 'auth_oidc'),
         'component' => 'moodle',
     ],
     [
         'pix' => 'i/permissions',
-        'alt' => get_string('cfg_iconalt_key', 'auth_oidc'),
+        'alt' => new lang_string('cfg_iconalt_key', 'auth_oidc'),
         'component' => 'moodle',
     ],
     [
         'pix' => 'i/cohort',
-        'alt' => get_string('cfg_iconalt_group', 'auth_oidc'),
+        'alt' => new lang_string('cfg_iconalt_group', 'auth_oidc'),
         'component' => 'moodle',
     ],
     [
         'pix' => 'i/groups',
-        'alt' => get_string('cfg_iconalt_group2', 'auth_oidc'),
+        'alt' => new lang_string('cfg_iconalt_group2', 'auth_oidc'),
         'component' => 'moodle',
     ],
     [
         'pix' => 'i/mnethost',
-        'alt' => get_string('cfg_iconalt_mnet', 'auth_oidc'),
+        'alt' => new lang_string('cfg_iconalt_mnet', 'auth_oidc'),
         'component' => 'moodle',
     ],
     [
         'pix' => 'i/permissionlock',
-        'alt' => get_string('cfg_iconalt_userlock', 'auth_oidc'),
+        'alt' => new lang_string('cfg_iconalt_userlock', 'auth_oidc'),
         'component' => 'moodle',
     ],
     [
         'pix' => 't/more',
-        'alt' => get_string('cfg_iconalt_plus', 'auth_oidc'),
+        'alt' => new lang_string('cfg_iconalt_plus', 'auth_oidc'),
         'component' => 'moodle',
     ],
     [
         'pix' => 't/approve',
-        'alt' => get_string('cfg_iconalt_check', 'auth_oidc'),
+        'alt' => new lang_string('cfg_iconalt_check', 'auth_oidc'),
         'component' => 'moodle',
     ],
     [
         'pix' => 't/right',
-        'alt' => get_string('cfg_iconalt_rightarrow', 'auth_oidc'),
+        'alt' => new lang_string('cfg_iconalt_rightarrow', 'auth_oidc'),
         'component' => 'moodle',
     ],
 ];
 $settings->add(new \auth_oidc\form\adminsetting\iconselect('auth_oidc/icon', $configkey, $configdesc, $configdefault, $icons));
 
-$configkey = get_string('cfg_customicon_key', 'auth_oidc');
-$configdesc = get_string('cfg_customicon_desc', 'auth_oidc');
+$configkey = new lang_string('cfg_customicon_key', 'auth_oidc');
+$configdesc = new lang_string('cfg_customicon_desc', 'auth_oidc');
 $setting = new admin_setting_configstoredfile('auth_oidc/customicon', $configkey, $configdesc, 'customicon');
 $setting->set_updatedcallback('auth_oidc_initialize_customicon');
 $settings->add($setting);
\ No newline at end of file