[flexcoders] Flex 3::AdvancedDataGrid::groupItemRenderer is for group or branch node only?

[tungchau81]

Hi,
My AdvancedDataGrid has grouping collection set up during 
intialization.I tried to change the label's color of all group or 
branch nodes, but the color got applied to the labels of child nodes 
also. Is this a bug?

<controls:AdvancedDataGrid id="reportTable" 
defaultLeafIcon="{myLeftIcon}"
groupIconFunction="reportArchiveGroupingIcon"  
dataTipFunction="generateReportDataTip"
initialize="gc.refresh();" 
width="100%" height="100%">
<controls:groupItemRenderer>
        <mx:Component>                  
        <mx:AdvancedDataGridGroupItemRenderer color="0xAAB3B3" />
        </mx:Component>
</controls:groupItemRenderer>
<controls:dataProvider>
     <mx:GroupingCollection id="gc" source="{reportArchives}">
          <mx:grouping>
               <mx:Grouping id="grouping">
                     <mx:GroupingField 
name="{arrangeBySelection.selectedItem.data}"/>
                      </mx:Grouping>
                    </mx:grouping>
                </mx:GroupingCollection>
            </controls:dataProvider>  
<controls:columns>
        <mx:AdvancedDataGridColumn id="nameCol" dataField="name" 
headerText="{getString('label.reportName')}" showDataTips="true" 
minWidth="300"/>
        <mx:AdvancedDataGridColumn id="sDateCol" 
dataField="startDate" labelFunction="formatStartDate" 
headerText="{getString('label.reportStartDate')}" showDataTips="true" 
width="100"/>
        <mx:AdvancedDataGridColumn id="eDateCol" dataField="endDate" 
labelFunction="formatEndDate" headerText="{getString
('label.reportEndDate')}" showDataTips="true" width="100"/>
        <mx:AdvancedDataGridColumn id="createdOnCol" 
dataField="createdOn" labelFunction="formatCreatedOnDate" 
headerText="{getString('label.createdOn')}" showDataTips="true" 
width="100"/>
...
</controls:AdvancedDataGrid>

Note: "0xAAB3B3" is a light grey color.