New look for the dialog headers

[Olivier Fourdan]

Benedikt Meurer wrote:
> http://foo-projects.org/~benny/tmp/new-header-look.png
> 
> The header would simply display the window icon and title (this way all
> MCS plugin dialogs would be finally consistent wrt this).
> 
> Opinions?

It looks really good IMHO. I'm all for it.

Cheers,
Olivier.