ac-addon-extra-columns.php

<?php
/*
Plugin Name: 		Admin Columns Pro - Extra (Experimental) Columns
Version: 			1.0
Description: 		Add extra columns to Admin Columns that are not suitable for the core of Admin Columns Pro
Author: 			Codepress
Author URI: 		https://www.admincolumns.com
Text Domain: 		codepress-admin-columns
*/

use AC\Plugin\Version;
use ACA\ExtraColumns\Dependencies;
use ACA\ExtraColumns\ExtraColumns;

if ( ! defined('ABSPATH')) {
    exit;
}

define('ACA_EXTRA_COLUMNS_FILE', __FILE__);

require_once __DIR__ . '/classes/Dependencies.php';

add_action('after_setup_theme', function () {
    $dependencies = new Dependencies(plugin_basename(__FILE__), '1.1');
    $dependencies->requires_acp('5.6');
    $dependencies->requires_php('5.6.20');

    if ($dependencies->has_missing()) {
        return;
    }

    Autoloader::instance()->register_prefix('ACA\ExtraColumns', __DIR__ . '/classes/');

    $plugin = ac_addon_extra_columns();
    $plugin->register();
});

function ac_addon_extra_columns()
{
    return new ExtraColumns(__FILE__, new Version('1.0'));
}