A simple method to let you place a ribbon on Specials displayed and make specials new price red .
Unfortunately this is not a standalone addon :( you have to replace one core file.
Go to includes/modules and rename the original product_listing.php to
product_listing.org. Then copy the supplied product_listing.php onto your site.
That’s it as long as you have not modified the original file it should just work.
It has been tested on the v2.3.4.1 CE Only.