[authors] Appropriate themes for Ubuntu screenshhots

[Elder Dan Lewis]

    It would be nice if a  theme existed for  Ubuntu and other non 
windows O/S's for making quality snapshots for our manuals. I thing Jean 
mentioned a silver type theme. But I do not have the foggiest notion of 
where they might be located on the internet nor how I could create a 
custom version which would be satisfactory.Any thoughts anyone?

Dan