U Default Picture

Missing images can cause a mess in your template's layout, breaking the structure of your homepage's modules. This happens because the modules lack a backup image to display when the article's intro image is missing. There are several plugins available in the Joomla! repository designed to deal with this issue by supplying fallback images for empty article slots. However, these plugins are set up to function triggered by the 'onContentBeforeDisplay' event. If the module doesn't trigger this event, these plugins won't work. Simply put, without the 'onContentBeforeDisplay' trigger, these plugins become useless.