Show different icons for different status options in orders grid in magento 2

I have added a custom field in sales_order table and showing it in sales_order_grid table in backend. It is working fine. I have done the following to achieve this
I have added sales_order_grid.xml file in following location

magento2appcodePlentyOrdersviewadminhtmlui_componentsales_order_grid.xml

< ?xml version="1.0" encoding="UTF-8"?>

    
        
            
                select
                
                select
                Plenty Status
            
        
    

Now my Status.php class that is rendering the data in the grid

magento2appcodePlentyOrdersUiComponentListingColumnStatus.php class that is acting as renderer

Content of the above class

< ?php
namespace PlentyOrdersUiComponentListingColumn;

use MagentoSalesApiOrderRepositoryInterface;
use MagentoFrameworkViewElementUiComponentContextInterface;
use MagentoFrameworkViewElementUiComponentFactory;
use MagentoUiComponentListingColumnsColumn;
use MagentoFrameworkApiSearchCriteriaBuilder;

class Status extends Column
{
protected $_orderRepository;
protected $_searchCriteria;

public function __construct(
    ContextInterface $context,
    UiComponentFactory $uiComponentFactory,
    OrderRepositoryInterface $orderRepository,
    SearchCriteriaBuilder $criteria,
    array $components = [],
    array $data = [])
{
    $this->_orderRepository = $orderRepository;
    $this->_searchCriteria  = $criteria;
    parent::__construct($context, $uiComponentFactory, $components, $data);
}

public function prepareDataSource(array $dataSource)
{
    if (isset($dataSource['data']['items'])) {
        foreach ($dataSource['data']['items'] as & $item) {

            $order  = $this->_orderRepository->get($item["entity_id"]);
            $status = $order->getData("plenty_status");

            switch ($status) {
                case PlentyOrdersModelOrderStatus::STATUS_NEW;
                    $plenty_status = "Order placed before plenty markets extension was installed";
                    break;
                case PlentyOrdersModelOrderStatus::STATUS_PENDING;
                    $plenty_status = "Pending";
                    break;
                case PlentyOrdersModelOrderStatus::STATUS_PROCESSING;
                    $plenty_status = "Processing";
                    break;
                case PlentyOrdersModelOrderStatus::STATUS_COMPLETE;
                    $plenty_status = "Complete";
                    break;
                case PlentyOrdersModelOrderStatus::STATUS_CANCELLED;
                    $plenty_status = "Canceled";
                    break;
                case PlentyOrdersModelOrderStatus::STATUS_UPDATED;
                    $plenty_status = "Updated";
                    break;
                case PlentyOrdersModelOrderStatus::STATUS_FAILED;
                    $plenty_status = "Failed";
                    break;          
                default:
                    $plenty_status = "Plenty Status not found";
                    break;

            }

            // $this->getData('name') returns the name of the column so in this case it would return export_status
            $item[$this->getData('name')] = $plenty_status;
        }
    }

    return $dataSource;
}

}

Everything is working fine. Statuses are showing properly in orders grid. Now my issue is I want to show different icons for different statuses. I want to use font awesome icons which is already included in my website. But when I make following changes in my code to show icons

case PlentyOrdersModelOrderStatus::STATUS_PENDING;
    $html .= '';
                    $statusToolTip = __('Order Synchronisation Pending');
                    break;

Then I am getting html in the orders grid also. Screenshot

So Please guide me what I should do or try to show icons in my order grid for plenty status field.

Screenshot of what I want to achieve.