Branding Message Option

Is there a way to brand the message that pops up when you use the message option. Would like it with my logo instead of the simple help logo when I send a message that has to be dismissed.

I already followed that guideā€¦ More wondering about when you do a popup message that they see on their side when you already have unatteneded access on their PC.

I would submit that as a feature request through the help desk.
Currently it just uses the logo image from the branding guide.