Currently new broadcast messages only appear in the taskbar and flash, but no roar popup is shown for them. Additionally the patch enables sound for broadcast messages if sounds for incoming messages are enabled.
BroadcastPlugin.patch
\src\java\org\jivesoftware\sparkimpl\plugin\alerts
after this patch Roar should show popups for broadcast messages
sound for new brodacast message will be played (if you have enabled sound for incoming messages)
Attached a patch by Tomas Hruska. Thanks!
Updated version with better format and full path to the file.
I have tested it. Works fine.
Patch has been tested. Can be applied to the source.
Applied with commit: c60283b10c0400404b467cf87774b1d66eda4338