Added an AnchorLayout to the MainPanel and set the layout data poroperty of the StackNavigator to AnchorLayoutData.fill()

src/view/RidersScreen.hx

@@ -1,5 +1,7 @@
 package view;
 
+import feathers.layout.AnchorLayoutData;
+import feathers.layout.AnchorLayout;
 import feathers.events.FeathersEvent;
 import feathers.layout.VerticalLayout;
 import feathers.controls.ScrollContainer;
@@ -18,19 +20,20 @@ class RidersScreen extends ScrollContainer {
 	override private function initialize():Void {
 		super.initialize();
 
-        var vl:VerticalLayout = new VerticalLayout();
-        vl.verticalAlign = TOP;
-        layout = vl;
+        layout = new AnchorLayout();
+
+        tb = new ToolBar();
+        tb.layoutData = AnchorLayoutData.fillHorizontal();
+        addChild(tb);
+    
+        rl = new RidersList();
+        rl.layoutData = AnchorLayoutData.fillHorizontal();
+        rl.y = 80;
+        addChild(rl);
 
 	}
 
     private function onCreationComplete(event:FeathersEvent):Void {
 		traceBlue(this + " --> onCreationComplete() - w: " + width + " h: " + height );
-
-		tb = new ToolBar();
-        addChild(tb);
-
-        rl = new RidersList();
-        addChild(rl);
 	}
 }