xiaowang/kirby/config/sections/mixins/headline.php

<?php

use Kirby\Cms\Helpers;
use Kirby\Toolkit\I18n;

return [
	'props' => [
		/**
		 * The headline for the section. This can be a simple string or a template with additional info from the parent page.
		 * @todo remove in 3.9.0
		 */
		'headline' => function ($headline = null) {
			// TODO: add deprecation notive in 3.8.0
			// if ($headline !== null) {
			//     Helpers::deprecated('`headline` prop for sections has been deprecated and will be removed in Kirby 3.9.0. Use `label` instead.');
			// }

			return I18n::translate($headline, $headline);
		},
		/**
		 * The label for the section. This can be a simple string or
		 * a template with additional info from the parent page.
		 * Replaces the `headline` prop.
		 */
		'label' => function ($label = null) {
			return I18n::translate($label, $label);
		}
	],
	'computed' => [
		'headline' => function () {
			if ($this->headline) {
				return $this->model()->toString($this->headline);
			}

			if ($this->label) {
				return $this->model()->toString($this->label);
			}

			return ucfirst($this->name);
		}
	]
];