弯曲宽度支架for flexible width 和flex height代表flexible height

    <?php
    // Previous function code here
    $args = array(
            \'default-image\'      => get_template_directory_uri() . \'/assets/images/default-image.jpg\',
            \'default-text-color\' => \'000\',
            \'width\'              => 1140,
            \'height\'             => 250,
            \'flex-width\'         => false, // Now width are fixed to 1140 px
            \'flex-height\'        => true,  // Height is adjustable
        );
    // Later Code Here
    ?>