protected function getDefaultStyleArrayForRow($row)
    {
        $style = $this->getDefaultStyleForFilledCells();

        if ($this->getOption(self::OPTION_ZEBRA)) {
            if (($row % 2) == 0) {
                $bgColor = $this->getOption(self::OPTION_ZEBRA_COLOR_EVEN);
            } else {
                $bgColor = $this->getOption(self::OPTION_ZEBRA_COLOR_ODD);
            }

            if ($bgColor) {
                $style['fill'] = [
                    'fillType' => Fill::FILL_SOLID,
                    'color' => ['argb' => $bgColor],
                ];
            }
        }

        return $style;
    }