refactoring: extract routing styles to config

config.js

@@ -85,6 +85,26 @@
     // 0 = no minimum, use stored setting; 1 = always reset to full visibility on load
     BR.conf.minOpacity = 0.3;
 
+    BR.conf.routingStyles = {
+        trailer: {
+            dashArray: [10, 10],
+            opacity: 0.6,
+            color: 'magenta'
+        },
+        track: {
+            color: 'magenta',
+            opacity: BR.conf.defaultOpacity
+        },
+        trackCasing: {
+            weight: 8,
+            color: 'white',
+            // assumed to be same as track, see setOpacity
+            opacity: BR.conf.defaultOpacity
+        },
+        nodata: {
+            color: 'darkred'
+        }
+    };
 
     // transit (intermodal routing) demo config
     if (BR.conf.transit) {

js/index.js

@@ -159,26 +159,7 @@
             routing: {
                 router: L.bind(router.getRouteSegment, router)
             },
-            styles: {
+            styles: BR.conf.routingStyles
-                trailer: {
-                    dashArray: [10, 10],
-                    opacity: 0.6,
-                    color: 'magenta'
-                },
-                track: {
-                    color: 'magenta',
-                    opacity: BR.conf.defaultOpacity
-                },
-                trackCasing: {
-                    weight: 8,
-                    color: 'white',
-                    // assumed to be same as track, see setOpacity
-                    opacity: BR.conf.defaultOpacity
-                },
-                nodata: {
-                    color: 'darkred'
-                }
-            }
         });
 
         routing.on('routing:routeWaypointEnd routing:setWaypointsEnd', function(evt) {