Fixed with the upload of notification-daemon_0.3.4-0ubuntu7. The background is based on the color of the tooltip now.
** Changed in: notification-daemon (Ubuntu) Status: Confirmed => Fix Released -- unusable with inverse theme https://launchpad.net/bugs/25497 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs