public function setStartColor(PHPExcel_Style_Color $pValue = null)
    {
        // make sure parameter is a real color and not a supervisor
        $color = $pValue->getIsSupervisor() ? $pValue->getSharedComponent() : $pValue;

        if ($this->isSupervisor) {
            $styleArray = $this->getStartColor()->getStyleArray(array('argb' => $color->getARGB()));
            $this->getActiveSheet()->getStyle($this->getSelectedCells())->applyFromArray($styleArray);
        } else {
            $this->startColor = $color;
        }
        return $this;
    }