Kibana chart element opacity on legend hover

Elastic Stack Kibana
2

There's no built-in setting for that. I found the code here in src/ui/public/vislib/lib/dispatch.js. I changed it from 0.5 to 0.1 and it made a big difference;

  /**
   * Mouseover Behavior
   *
   * @param element {D3.Selection}
   * @method highlight
   */
  Dispatch.prototype.highlight = function (element) {
    var label = this.getAttribute('data-label');
    if (!label) return;
    //Opacity 1 is needed to avoid the css application
    $('[data-label]', element.parentNode).css('opacity', 1).not(
      function (els, el) { return `${$(el).data('label')}` === label;}
    ).css('opacity', 0.5);
  };