How can I configure the WYSYGYG editor options in MB Frontend Submission?

This is the code I am using and it does not work to customize the editor for the fake content field:

public function ks_editor_trabajo_realizado($meta_boxes)
    {
        $post_id = filter_input(INPUT_GET, 'post', FILTER_SANITIZE_NUMBER_INT);
        $post_content = get_post_field('post_content', $post_id);

        $meta_boxes[] = [
            'title'      => 'Descripción del trabajo',
            'post_types' => 'trabajo-realizado',
            'fields'     => [
                [
                    'type' => 'wysiwyg',
                    'id'   => 'content',
                    'name' => 'Descripción',
                    'std'  => $post_content,
                    'save_field' => false,
                    'options' => [
                        'textarea_rows'   => 3,
                        'media_buttons'    => false,
                        'teeny' => false,
                        'quicktags' => false,
                        'tinymce' => [
                            'media_buttons'    => false,
                        ]
                    ]
                ],
            ],
        ];

        return $meta_boxes;
    }

Any help please?