message: Add svg image background to checkbox
diff: }
  .sv-check-item:checked:after,
  .sv-check-item:hover:after {
  - display: initial;
  + display: inline-block;
  }
  .sv-check-item:focus {
  - outline: solid 0.07em #19ab8d;;
  - outline-offset: 0.214em;
  + box-shadow: 0 0 0 0.21em white,
  + 0 0 0 0.28em#19ab8d;
  + outline: unset;
  }
  \ No newline at end of file
  