@twisted1919 I couldn't find where I could set alt text for tracking url, it does make sense to have even if it's just going to say "image" Can you help with that?
If you set an ALT text there, then the alt will be rendered in page since the tracking pixel isn't really an image but a url to a resource where we track the open, so i advise you don't do this.
If you want to proceed, see apps/common/components/helpers/CampaignHelper.php, search for '/track-opening/' in the page.