diff --git a/rest/json-all-events.php b/rest/json-all-events.php
index 4cdadf3..d6f943d 100644
--- a/rest/json-all-events.php
+++ b/rest/json-all-events.php
@@ -236,7 +236,7 @@ protected function generate_event_html($event, $upload, $colors, $image_src_fiel
 		$template = '<div class="civicrm-ux-event-listing">';
 		$template .= $event[$image_src_field] ? '<div class="civicrm-ux-event-listing-image"><img src="' . $image_url . '"></div>' : '';
 
-		$template .= '<div class="civicrm-ux-event-listing-type" style="background-color: ' . (count($colors) > 0 ? '#' . $colors[$event['event_type_id:label']] : '#333333') . ';">' . $event['event_type_id:label'] . '</div>
+		$template .= '<div class="civicrm-ux-event-listing-type" style="background-color: #' . ($colors[$event['event_type_id:label']] ?? '333333') . ';">' . $event['event_type_id:label'] . '</div>
 		<div class="civicrm-ux-event-listing-name">' . $event['title'] . '</div>
 		<div class="civicrm-ux-event-listing-date"><i class="fa fa-calendar-o"></i><span class="event-time-text">' . $event_time . '</span></div>
 		<div class="civicrm-ux-event-listing-location"><i class="fa fa-map-marker"></i><span class="event-time-text">' . $event_location . '</span></div>';
@@ -264,4 +264,4 @@ protected static function sameDay( $d1, $d2 ) {
 		return ( $d1->format( 'j' ) == $d2->format( 'j' ) ) && ( $d1->format( 'f' ) == $d2->format( 'f' ) ) && ( $d1->format( 'Y' ) == $d2->format( 'Y' ) );
 	}
 
-}
\ No newline at end of file
+}