phpvms/config/gravatar.php

<?php
/**
 * Gravatar configs
 */

return [
    'url'     => 'https://www.gravatar.com/avatar/',
    'default' => env('GRAVATAR_DEFAULT_AVATAR', 'https://en.gravatar.com/userimage/12856995/aa6c0527a723abfd5fb9e246f0ff8af4.png'),
];