Whenever there is an unread notification (e.g. chat messages), blinks the message in the user's menu with a color chosen by the user.
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Gnome-Shell Notifications Alert by Thiago Bellini <hackedbellini@gmail.com>

Description:
  * Whenever there is an unread notification (e.g. chat messages), paints the
    message in the user's menu with a color chosen by the user.

How to use:
  * Simply go to the extension page on gnome.extensions and activate it:
    https://extensions.gnome.org/extension/258/
  * Any doughs, be sure to take a look at the FAQ:
    https://github.com/hackedbellini/Gnome-Shell-Notifications-Alert/wiki/FAQ

Want to improve this extension? Fork it and send me a pull request ;D