Media Modal does not appear to work

I'm trying to display a colour picker field on the 'Attachment Details' modal for images, does not appear to work, any ideas?

$meta_boxes[] = array(
    'title'       => 'Hover colour',
    'post_types'  => 'attachment',
    'media_modal' => true,
    'fields'  => array(
        
        array(
            'name' => __( 'Hover colour', 'rwmb' ),
            'desc' => __( '', 'rwmb' ),
            'id'   => "{$prefix}image_hover_coloor",
            'type' => 'color',
        ),

    )
);