[Extension Request] Notification bar / Message in WordPress dashboard

Hi all,

Probably easy feature to implement, because footer text, and branding already exists, but I think having a notification banner (custom message), at the very top of Wordpress dashboard for other admins, would be great feature.

This could be a great and easy way to communicate and warn other admins about specific path or action that you took, for example why specific plugin is disabled, this plugin release is unsafe, or why this section is disabled etc.

You may not be the only admin in WordPress, so having this warning banner at the very top, will help you do your job better, without anyone messing things up.

Please Vote!