[Urgent]where is the picture that shows "Show details..."

["Kevin Yang" <kevin.anaconda@xxxxxxxxx>]

Hi, Anaconda list.
    I have a problem. I want to change the background picture. but i'm fail to find the right picture. anyone can help me? The picture is that it will shows "Show details..." during the Fedora Core5 run the scripts in /etc/init.d/. so i want to know the picture name.
    Very Very Very Thanks.

Regards.
Kevin.