/**
     * Print page header.
     */
    public static function print_header()
    {
        $url_wpglobus_logo = WPGlobus::internal_images_url() . '/wpglobus-logo-180x180.png';
        ?>
		<style>
			.wp-badge.wpglobus-badge {
				background:      #ffffff url(<?php 
        echo esc_url($url_wpglobus_logo);
        ?>
) no-repeat;
				background-size: contain;
			}
		</style>

		<?php 
        echo '<div class="wrap about-wrap wpglobus-about-wrap">';
        ?>

		<h1 class="wpglobus"><span class="wpglobus-wp">WP</span>Globus
			<span class="wpglobus-version"><?php 
        echo esc_html(WPGLOBUS_VERSION);
        ?>
</span>
		</h1>

		<div class="wpglobus-motto"><?php 
        esc_html_e('Multilingual Everything!', 'wpglobus');
        ?>
</div>
		<div class="about-text">
			<?php 
        esc_html_e('WPGlobus is a family of WordPress plugins assisting you in making multilingual WordPress blogs and sites.', 'wpglobus');
        ?>
		</div>

		<div class="wp-badge wpglobus-badge"></div>
		<?php 
    }
 /**
  * Filter api results
  *
  * @param stdClass|WP_Error $res    Response object or WP_Error.
  * @param string            $action The type of information being requested from the Plugin Install API.
  * @param stdClass          $args   Plugin API arguments.
  *
  * @return stdClass|WP_Error
  */
 public static function filter__plugins_api_result($res, $action, $args)
 {
     if (is_wp_error($res)) {
         return $res;
     }
     if (empty($res->plugins)) {
         return $res;
     }
     foreach ((array) $res->plugins as $key => $plugin) {
         if (false === strpos($plugin->slug, 'wpglobus')) {
             unset($res->plugins[$key]);
         } else {
             if ('wpglobus-for-black-studio-tinymce-widget' === $plugin->slug) {
                 /**
                  * Set correct slug for the
                  * `WPGlobus for Black Studio TinyMCE Widget` plugin.
                  *
                  * @since 1.6.3
                  */
                 $plugin->slug = 'wpglobus-for-black-studio-widget';
                 self::$plugin_card['free'][] = $plugin->slug;
                 self::$free_plugins[$plugin->slug]['extra_data']['correctLink'] = 'wpglobus-for-black-studio-tinymce-widget';
             } else {
                 self::$plugin_card['free'][] = $plugin->slug;
             }
         }
     }
     $url_wpglobus_site = WPGlobus_Utils::url_wpglobus_site();
     $all_products = self::_get_all_product_info();
     foreach (self::$paid_plugins as $plugin => $plugin_data) {
         $plugin_file = implode('/', array(WP_PLUGIN_DIR, $plugin_data['slug'], $plugin_data['loader']));
         if (is_readable($plugin_file)) {
             // Plugin is installed.
             self::$paid_plugins[$plugin]['plugin_data'] = get_plugin_data($plugin_file, false);
         } else {
             self::$paid_plugins[$plugin]['plugin_data'] = null;
             $product_slug = isset($plugin_data['product_slug']) ? $plugin_data['product_slug'] : $plugin;
             if (isset($all_products[$product_slug])) {
                 $plugin_info = $all_products[$product_slug];
                 // Titles come as multilingual strings.
                 $_plugin_title = WPGlobus_Filters::filter__text($plugin_info['title']);
                 self::$paid_plugins[$plugin]['plugin_data'] = array('Description' => '', 'Name' => $_plugin_title, 'Title' => $_plugin_title, 'Version' => $plugin_info['_api_new_version'], 'PluginURI' => $url_wpglobus_site . 'product/' . $product_slug . '/');
             }
         }
     }
     /**
      * Prepend the premium add-ons to the list of plugins.
      */
     foreach (self::$paid_plugins as $slug => $paid_plugin) {
         $_info = self::_plugin_info_template();
         $_info->slug = $slug;
         $_info->icons['default'] = $_info->icons['1x'] = $_info->icons['2x'] = WPGlobus::internal_images_url() . '/' . $paid_plugin['image_file'];
         if (!empty($paid_plugin['plugin_data'])) {
             $_info->name = $paid_plugin['plugin_data']['Name'];
             $_info->short_description = $paid_plugin['plugin_data']['Description'];
             $_info->homepage = $paid_plugin['plugin_data']['PluginURI'];
         } else {
             $_info->name = $slug;
         }
         self::$plugin_card['paid'][] = $slug;
         self::$paid_plugins[$slug]['card'] = $_info;
         self::$paid_plugins[$slug]['extra_data']['product_url'] = self::$paid_plugins[$slug]['extra_data']['details_url'] = $_info->homepage;
         array_unshift($res->plugins, $_info);
     }
     $res->info['results'] = count($res->plugins);
     return $res;
 }