Hello. I wanted to change the default image for the password gallery in config_override.php but it doesn't work.
// set the name of the image which is used for a redirect in case an image is not visible for the current user
if (!defined('COM_EVENTGALLERY_IMAGE_NO_ACCESS')) {
define('COM_EVENTGALLERY_IMAGE_NO_ACCESS', 'media/com_eventgallery/frontend/images/haslo.png');
}