Yes it would change the background and glass color too.
If you have a named-and-saved theme active, then you go and modify the glass/background/sound settings of it-- it will automatically create a "unsaved theme" next to your saved themes.
In this case, Dell would have had their factory restore system image set to use their custom theme over the standard Windows 7 Aero by default (it is easy to change defaults such as this when making a system image/customized windows installer disc.)
You will be able to save your themes without worrying about the login screen getting changed from now on
Quote: Originally Posted by Judyac
I also got the Desktop Background and Window Glass for that theme which I didn't want.
I changed the Window Glass and Desktop Background to what I wanted, and an unsaved theme was created. This time I did not click on the unsaved theme or save it. I think that is how the logon screen got changed to grey last time.
I'm happy now. It is amazing how much the screen visuals can affect one.