castopod/app/Language/en/Validation.php

<?php

/**
 * @copyright  2020 Podlibre
 * @license    https://www.gnu.org/licenses/agpl-3.0.en.html AGPL3
 * @link       https://castopod.org/
 */

return [
    'min_dims' =>
        '{field} is either not an image, or it is not wide or tall enough.',
    'is_image_squared' =>
        '{field} is either not an image, or it is not squared (width and height differ).',
    'validate_url' =>
        'The {field} field must be a valid URL (eg. https://example.com/).',
];