Database 我有自定义代码，输出时需要加粗。我可以使用什么google sheets脚本？

我已经在表单和工作表中创建了一个定制的工单提交表单，可以自动通过电子邮件发送每次提交的确认信息（工作请求表单），以创建供应商活动的数据跟踪。通过在这些论坛上的大量阅读，再加上无数令人沮丧的尝试和错误时刻，这些内容相当完整，完全拼凑在一起。新手走向“有能力”，但我被一段代码卡住了，该代码用于触发确认电子邮件，带有随机工单生成器、电子邮件确认和内置的基于切换的管理。下面的代码实际上需要帮助，用于发送服务确认、工作订单的触发确认电子邮件，并显示他们最初提交的所有内容。问题是，我的代码提供的数据完全符合我的要求，而且位置也很好，但我需要在列标题和变量提交数据之间建立视觉上的区别。有人能帮我在第16行的列标题中添加一个粗体代码，以帮助在列“类别”和提交数据之间建立视觉区别吗

// This constant is written in column C for rows for which an email
// has been sent successfully.
var EMAIL_SENT = "EMAIL_SENT";

function sendEmails2() {
  var sheet = SpreadsheetApp.getActiveSheet();
  var startRow = 2;  // First row of data to process
  var numRows = 1000;   // Number of rows to process
  // Fetch the range of cells A2:B3
  var dataRange = sheet.getRange(startRow, 1, numRows, 27)
  // Fetch values for each row in the Range.
  var data = dataRange.getValues();
  for (var i = 0; i < data.length; ++i) {
    var row = data[i];
    var emailAddress = row[19];
    var message = row[16] + "\n\n" + "Submitted By: " + row[19] + "\n\n" + "Date Submitted: " + row[0] + "\n\n" + row[21] + "\n\n" + "IMPORTANT NOTES FROM CDS: " + row[20] + "\n\n" + "Full Show Services: " + row[3] + "\n\n" + "Event Start Date: " + row[4] + "\n\n" + "Event End Date: " + row[5] + "\n\n" + "Warehouse Locations: " + row[6] + "\n\n" + "Individual Services Requested: " + row[7] + "\n\n" + "Individual Services - Warehouse(s) & Date(s) Requested: " + row[8] + "\n\n" + "Partial Hourly Staffing Details Requested: " + row[9] + "\n\n" + "Requestors Instructions / Comments: " + row[10] + "\n\n" + "Files: " + row[11] + row[12] + "\n\n" + "Thank you for your request. We appreciate your business. CDS Special Events Team ";// Second columnn
    var emailSent = row[18];
    var subject = row[16];// Third columnvar ss = SpreadsheetApp.getActiveSpreadsheet();
        if (emailSent != EMAIL_SENT) {  // Prevents sending duplicates
       MailApp.sendEmail(emailAddress, subject, message);
                   sheet.getRange(startRow + i, 19).setValue(EMAIL_SENT);
      // Make sure the cell is updated right away in case the script is interrupted
      SpreadsheetApp.flush();
    }
  }
}

//此常量写在C列中，用于接收电子邮件的行
//已成功发送。
var EMAIL_SENT=“EMAIL_SENT”；
函数sendmails2（）{
var sheet=SpreadsheetApp.getActiveSheet（）；
var startRow=2；//要处理的第一行数据
var numRows=1000；//要处理的行数
//获取单元格A2:B3的范围
var dataRange=sheet.getRange（startRow，1，numRows，27）
//获取范围中每行的值。
var data=dataRange.getValues（）；
对于（变量i=0；i