Background Cell sum funciton

code.gs

function sumColoredCells(sumRange,colorRef) {
  var activeRg = SpreadsheetApp.getActiveRange();
  var activeSht = SpreadsheetApp.getActiveSheet();
  var activeformula = activeRg.getFormula();
  var countRangeAddress = activeformula.match(/\((.*)\,/).pop().trim();
  var backGrounds = activeSht.getRange(countRangeAddress).getBackgrounds();
  var sumValues = activeSht.getRange(countRangeAddress).getValues();  
  var colorRefAddress = activeformula.match(/\,(.*)\)/).pop().trim();

  // 필요에 따라 변경
  var BackGround = activeSht.getRange(colorRefAddress).getBackground();  

  var totalValue = 0;
  for (var i = 0; i < backGrounds.length; i++)
    for (var k = 0; k < backGrounds[i].length; k++)
      if ( backGrounds[i][k] == BackGround )
        if ((typeof sumValues[i][k]) == 'number')
          totalValue = totalValue + (sumValues[i][k]);
  return totalValue;
};