SAS applications display
with the Flex interface that is provided by a particular version of
SAS Application Themes for Flex. At start-up time, Flex applications
load Flex themes automatically. A theme consists of SWF files that
include cascading style sheets (CSS) files. The theme content is downloaded
to the client, and is cached by the user's Web browser. As a result,
during subsequent uses of the Web application, the theme content loads
quicker than when it is initially loaded. The SAS Corporate theme
is the default theme for SAS applications that use Flex themes.