The trigger detail view shows statistics for a specific trigger in the campaign. The title of the page contains the campaign name followed by the trigger name. In this example, the campaign name is "Test Campaign" and the trigger name is "First Email". The graph and table contains statistics for each experiment in the trigger.
For one-time campaigns that are have automatic winner selection enabled, you will see an alert box that calls out the winning experiment when the campaign has finished messaging all users. In addition, there is also a Winner Selection section that displays the data that was used to determine the winning experiment. This section is collapsed by default and you can click on the arrow to expand it.
Clicking on the campaign name in the title will take you back to the campaign detail view. Clicking on the trigger name in the title will take you to the campaign edit view for that trigger.