Vendor/phpspreadsheet/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Chart/Axis.php
public function setGlowProperties($size, $color_value = null, $color_alpha = null, $color_type = null)
    {
        $this->setGlowSize($size)
            ->setGlowColor(
                $color_value === null ? $this->glowProperties['color']['value'] : $color_value,
                $color_alpha === null ? (int) $this->glowProperties['color']['alpha'] : $color_alpha,
                $color_type === null ? $this->glowProperties['color']['type'] : $color_type
            );
    }
public function setGlowProperties($size, $color_value = null, $color_alpha = null, $color_type = null)
    {
        $this->setGlowSize($size)
            ->setGlowColor(
                $color_value === null ? $this->glowProperties['color']['value'] : $color_value,
                $color_alpha === null ? (int) $this->glowProperties['color']['alpha'] : $color_alpha,
                $color_type === null ? $this->glowProperties['color']['type'] : $color_type
            );
    }
Set Glow Properties.

@param float $size
@param string $color_value
@param int $color_alpha
@param string $color_type