I’ve mentioned this in a previous post, but, I’m going to post it again because it probably got buried in a longer post.
In the Flex 4 SDK, we automatically use the Spark theme which you might not want. Many styles don’t work in this theme and you might want to go back to the theme from Flex 3. Flex 3 used the “Halo” theme.
This theme can still be found in the SDK under <sdk dir>/frameworks/themes/Halo/halo.swc. To compile an application in Flex 4 with the halo theme, your mxmlc compile statement will look something like this: