Vtiful\Kernel\Format::italic

<?php
$config = [
    'path' => './tests'
];

$excel = new \Vtiful\Kernel\Excel($config);
$excel->fileName('tutorial01.xlsx');

$format = new \Vtiful\Kernel\Format($excel->getHandle());
$italicStyle = $format->italic()->toResource();

$excel->header(['name', 'age'])
    ->data([['viest', 21]])
    ->setColumn('A:A', 200, $italicStyle)
    ->output();
?>