private static function init_messages()
{
self::$messages = [];
self::$messages['acf_missing'] = '
<div class="error notice">
<p>You have activated the plugin "Fewbricks". In order to use it, please make sure that <a href="http://www.advancedcustomfields.com/">Advanced Custom Fields 5 Pro</a> is installed and activated.</p>
</div>';
self::$messages['fewbricks_hidden_missing'] = '
<div class="error notice">
<p>You have activated the plugin "Fewbricks". In order to use it, please make sure that <a href="https://github.com/folbert/acf-fewbricks-hidden">Fewbricks Hidden Field</a> for Advanced Custom Fields is installed and activated.</p>
</div>
';
self::$messages['fewbricks_template_dir_missing'] = '
<div class="error notice">
<p>You have activated the plugin "Fewbricks". In order to use it, please make sure that you have copied the directory "fewbricks" in plugins/fewbricks/ to your theme directory. Read more in the <a href="https://github.com/folbert/fewbricks/blob/master/README.md">README</a> (search for "hidden").</p>
</div>
';
}