I have a new Flex Library Project I'd like to use as my application's primary theme. I am using CSS to do this. When I apply the theme, I get "The style ... is only supported by the type ... with the theme(s) 'halo, spark'".
This is due to the fact that the compiler is seeing only my theme, and not seeing the theme as a modification layer atop Spark.
Since I wish to extend Spark rather than specify every style, is there a way to pull Spark into my theme and still use that theme in building the application? Otherwise, would I need to use the Spark source or SWC itself in my theme in order to do this?
How is custom Spark theming actually done? I do not see this in the docs.