Sometime after Flex 4 beta 2 was released, they changed the main way to change the color of a sparkSkin from ‘baseColor’ to ‘chromeColor’. So, if you get an error in eclipse about how baseColor doesn’t exist, but the tutorials are telling you that it does, try chromeColor instead.
Flex 4 gotcha – baseColor changed to chromeColor
March 12th, 2010 | Flex