Index: /trunk/src/org/openstreetmap/josm/data/osm/visitor/MapPaintVisitor.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/data/osm/visitor/MapPaintVisitor.java	(revision 1500)
+++ /trunk/src/org/openstreetmap/josm/data/osm/visitor/MapPaintVisitor.java	(revision 1501)
@@ -257,5 +257,5 @@
         if(l != null)
         {
-            color = l.color;
+            if (l.color != null) color = l.color;
             width = l.width;
             realWidth = l.realWidth;