Adds a "Black Friday" template name to the array of available landing page templates for Sitewide Sales: https://sitewidesales.com

add_custom_swsales_landing_page_templates.php

<?php
/*
 * Filters the array of available landing page templates for Sitewide Sales (https://sitewidesales.com).
 *
 * @param array $templates The default list of available templates.
 */
function add_custom_swsales_landing_page_templates( $templates ) {
	$templates['black-friday'] = 'Black Friday'; // This is how you add a new template to the array.
	//unset( $templates['neon'] ); // This is how you unset an included template from the array.
	return $templates;
}
add_filter( 'swsales_landing_page_templates', 'add_custom_swsales_landing_page_templates' );