Hello! Decided to give this plugin a shot for a client’s site. Wanted to display the thumbnail. So, I altered the plugin code. NOTE: Any edits to the core plugin will be erased when updating.
Essentially I just used WordPress’ built in functionality to display the thumbnail and altered the output the plugin builds. Pretty basic.
Find the section:
if ($posts && !$no_upcoming_events)
This is the output the plugin builds if you have events in the system.
Change the specific $output entry that begins
$output .= '<h4 class="entry-title summary">
to
$output .= '<h4 class="entry-title summary">'.get_the_post_thumbnail($post_id, array(350, 350) ).'<a href="' . tribe_get_event_link() . '" rel="bookmark">' . get_the_title() . '</a></h4>';
Now, this is set to pull a 350×350 thumbnail of the featured image. If you need something larger just adjust those values in the array.