Custom - Event Image

function my_em_mod_custom_image_placeholders($replace, $EM_Event, $result){
	if ( $result == '#_EVENTIMAGECUSTOM' ) {
		$replace = get_the_post_thumbnail($EM_Event->post_id, 'thumbnail');
	}
	return $replace;
}
add_filter('em_event_output_placeholder','my_em_mod_custom_image_placeholders',1,3);