ps://img.icons8.com/material-outlined/24/000000/minus-sign.png);
      background-repeat: no-repeat;
      background-size: contain;
      width: 20px;
    }

    label.tree-view-bullet-expanded {
      opacity: 0;
      padding-left: 3px;
      cursor: pointer;
    }

    td.tree-view-bullet-collapsed {
      background: url(https://img.icons8.com/material-outlined/24/000000/plus--v1.png);
      background-repeat: no-repeat;
      background-size: contain;
      width: 20px;
    }

    .l-d {
        paddi