code: function _formatComparison(label, basicComparison) {
    const style = (basicComparison.valid) ? complete : missing;
    return [style(label), basicComparison.inspectorValue, basicComparison.atomDocValue];
  }
docs: Private: formats comparison with correct coloring
  
  * `label` {String}
  * `basicComparison` {BasicComparison}
  
  Returns {String} formatted