In the Flex documentation on backgroundColor it says: "The default value is undefined, which means it is not set. If both this style and the backgroundImage style are undefined, the component has a transparent background."
However, I have found with many components that this is not true (Accordion, TileList) and I have to specify a background color or set the alpha to 0 to make it transparent. Am I doing something wrong? I would rather my components to default to transparent. - Kevin
