message: add variables to failure-bordered
diff: -<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><g fill-rule="nonzero" fill="none"><circle fill="red" cx="10" cy="10" r="10"/><path d="M11.143 10.757h-2.32l-.486-6.855h3.29l-.484 6.855zM8.3 14.01a1.594 1.594 0 01.427-1.207c.346-.294.793-.441 1.246-.41.446-.028.886.123 1.222.419.304.322.461.756.432 1.198a1.59 1.59 0 01-.437 1.182c-.33.303-.77.46-1.217.433a1.705 1.705 0 01-1.237-.423 1.583 1.583 0 01-.436-1.192z" fill="#FFF"/></g></svg>
  +<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><g fill-rule="nonzero" fill="none"><circle fill="var(--icon-background-color, red)" cx="10" cy="10" r="10"/><path d="M11.143 10.757h-2.32l-.486-6.855h3.29l-.484 6.855zM8.3 14.01a1.594 1.594 0 01.427-1.207c.346-.294.793-.441 1.246-.41.446-.028.886.123 1.222.419.304.322.461.756.432 1.198a1.59 1.59 0 01-.437 1.182c-.33.303-.77.46-1.217.433a1.705 1.705 0 01-1.237-.423 1.583 1.583 0 01-.436-1.192z" fill="var(--icon-color, #FFF)"/></g></svg>
  