protected function createInitials($filename, $fullname, $width = null, $height = null)
    {
        $width        = is_null($width) ? config('avatar.width') : $width;
        $height       = is_null($height) ? config('avatar.height') : $height;
        $defaultWidth = config('avatar.width');
        $fontSize     = config('avatar.fontSize');
        $fontSize     = (((int) $width - $defaultWidth) >= 10) ? $fontSize     += ($width - $defaultWidth) / 2 : $fontSize;
        $avatar       = AvatarFacade::create($fullname)->setDimension($width, $height)->setFontSize($fontSize)->setShape('circle')->setBorder(1, '#3bc975');

        $avatar->save($filename, 100);
        return $avatar;
    }