public function lighten($pct)
    {
        $lightness = $this->lightness() + $pct;
        $lightness = $lightness > 100 ? 100 : $lightness;

        return $this->withLightness($lightness);
    }
public function lighten($pct)
    {
        $lightness = $this->lightness() + $pct;
        $lightness = $lightness > 100 ? 100 : $lightness;

        return $this->withLightness($lightness);
    }
public function lighten ( $ pct ) { $ lightness = $ this -> lightness ( ) + $ pct ; $ lightness = $ lightness > 100 ? 100 : $ lightness ; return $ this -> withLightness ( $ lightness ) ; }
Lighten the color.

@param int $pct

@return static
Lighten the color .