Provides instant preview of MXML components (Flex or Flash). Properties and style inspector.
General usage instructions
The MXML Design Preview plugin maintenance has ended. The plugin remains available for installation and will be compatible with the future IntelliJ IDEA versions but the plugin authors do not plan to release plugin updates in future. The source code of the plugin is available, see the link above.
Note that the Flash/Flex Support plugin, which is included in the IntelliJ IDEA installation, remains maintained.