don't mention rootwidget in chrome yaml

OpenRA.Game/Widgets/Widget.cs

@@ -55,7 +55,10 @@ namespace OpenRA.Widgets
 				{
 					var widgetYaml = Game.Manifest.ChromeLayout.Select(a => MiniYaml.FromFile(a)).Aggregate(MiniYaml.Merge);
 
-					rootWidget = WidgetLoader.LoadWidget( widgetYaml.FirstOrDefault() );
+					rootWidget = new ContainerWidget();
+					foreach( var w in widgetYaml )
+						rootWidget.AddChild( WidgetLoader.LoadWidget( w ) );
+					
 					rootWidget.Initialize();
 					rootWidget.InitDelegates();
 				}

mods/ra/chrome/gamelobby.yaml

@@ -1,5 +1,3 @@
-Container@ROOT:
-	Children:
 Background@SERVER_LOBBY:
 	Id:SERVER_LOBBY
 	Delegate:LobbyDelegate

mods/ra/chrome/ingame.yaml

@@ -1,5 +1,3 @@
-Container@ROOT:
-	Children:
 Container@INGAME_ROOT:
 	Id:INGAME_ROOT
 	Delegate:IngameChromeDelegate

mods/ra/chrome/mainmenu.yaml

@@ -1,5 +1,3 @@
-Container@ROOT:
-	Children:
 Background@MAINMENU_BG:
 	Id:MAINMENU_BG
 	X:(WINDOW_RIGHT - WIDTH)/2

mods/ra/chrome/serverbrowser.yaml

@@ -1,5 +1,3 @@
-Container@ROOT:
-	Children:
 Background@CREATESERVER_BG:
 	Id:CREATESERVER_BG
 	Delegate:CreateServerMenuDelegate

mods/ra/chrome/settings.yaml

@@ -1,5 +1,3 @@
-Container@ROOT:
-	Children:
 Background@SETTINGS_MENU:
 	Id:SETTINGS_MENU
 	Delegate:SettingsMenuDelegate