Add theme for color impaired hams (based on default) (#2497)

application/controllers/Gridmap.php

@@ -39,6 +39,8 @@ class Gridmap extends CI_Controller {
 		$data['gridsquares_fields_not_confirmed'] 	= __("Fields not confirmed");
 		$data['gridsquares_fields_total_worked'] 	= __("Total fields worked");
 
+		$data['user_map_custom'] = $this->optionslib->get_map_custom();
+
         $footerData = [];
 		$footerData['scripts'] = [
 			'assets/js/leaflet/geocoding.js',