display space transfer nodes in other colors

src/c3nav/editor/api.py

@@ -175,7 +175,8 @@ class EditorViewSet(ViewSet):
             'column': '#888888',
             'poi': '#4488cc',
             'shadow': '#000000',
-            'graphnode': '#00bb00',
+            'graphnode': '#00BB00',
+            'graphnode__space_transfer': '#008800',
         })
 
     @list_route(methods=['get'])

src/c3nav/editor/static/editor/js/editor.js

@@ -389,6 +389,9 @@ editor = {
     _get_geometry_style: function (feature) {
         // style callback for GeoJSON loader
         var style = editor._get_mapitem_type_style(feature.properties.type);
+        if (feature.properties.space_transfer) {
+            style = editor._get_mapitem_type_style('graphnode__space_transfer');
+        }
         if (editor._level_control.current_level_id === editor._sublevel_control.current_level_id) {
             if (editor._sublevel_control.level_ids.indexOf(feature.properties.level) >= 0 && editor._level_control.current_level_id !== feature.properties.level) {
                 style.stroke = true;

src/c3nav/mapdata/models/graph.py

@@ -19,6 +19,12 @@ class GraphNode(SpaceGeometryMixin, models.Model):
         verbose_name_plural = _('Graph Nodes')
         default_related_name = 'graphnodes'
 
+    def get_geojson_properties(self, *args, **kwargs) -> dict:
+        result = super().get_geojson_properties(*args, **kwargs)
+        if self.space_transfer:
+            result['space_transfer'] = True
+        return result
+
 
 class WayType(TitledMixin, models.Model):
     """