I'm trying to color the headers in a data grid and I am running into some problems as to how to do this. It seems the old way, through CSS, no longer works. Could someone please point me in the right direction as to how to do this in the new Flash Builder environment?
I think the easiest solution is to just set the new baseColor style on the DataGrid, but depending on what you're trying to do, you may need a custom skin.
There are a few random DataGrid+Flex4 examples at http://blog.flexexamples.com/category/datagrid/?tag=Gumbo
More specifically, take a quick look at Setting the base color on the Halo DataGrid control in Flex 4 and Setting the header colors on the Halo DataGrid control in Flex 4.