Making my Flex Canvas Transparent

Good Morning Stackoverflow I would like to ask a question....how do you make your mx:Canvas transparent

mx:Canvas includeIn="menugamestate1" id="v1" width="500" height="500" backgroundColor= 'none' borderStyle="none" dragEnter="dragEnterHandler(event);" dragDrop="dragDropHandler(event);" width.menugamestate1="1004" x.menugamestate1="10.4" y.menugamestate1="46.7" height.menugamestate1="437"

that was the 开发者_运维技巧sample

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Rather than setting backgroundColor to "none", set the alpha:

backgroundAlpha="0.0"

Hope that helps.