[backwards compatibility] Checkbox with label has a height 22 width 55 instead of height 18 width 64 in Flex 2.0.1

Reproduction:
1. Compile & Run the following with Flex 2.0.1 and Flex 2.0:
<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" height="600" width="600" >
<mx:CheckBox id="cb" label="Label"/>
<mx:Label text="Height :

"/>
<mx:Label text="Width :

"/>
</mx:Application>

Actual Results:
With the latest build the height is 22, and the width is 55.
With Flex 2.0.1 the height is 18, and the width is 64.

Expected Results:
They should either be the same height & width or there should be a way to toggle behavior to either the new way or the Flex 2.0.1.

Workaround: