I didn't like the RedHat icons that come with the Bluecurve theme that you can select from either GNOME of KDE in Fedora Core 3 so I changed the hue of the shadowman-round-48.png file to a blue color. I then replaced all of the icons that were red RedHat fedora's. A fedora is a type of hat. Like the hat that Indiana Jones wore. That's a fedora.
Anyway, if you want to get rid of the red icons in favor of blue ones I've attached the icon paths in a text file so you can back up what you have now and there is a tarball that's gzipped with all of the blue icons within complete with recursive paths.
All you have to do is open it with ark or file-roller and extract them to the destinations that they have with the option to overwrite what's there with the new ones. You have to be root to perform the extraction/overwrite.
Next you logout and then log back in. You should see the blue hat icon on your menu bar and you will see it during a reboot of Fedora as well as a small blue hat icon and a metallic panel. When or if you choose to add a panel with GNOME or a special button with KDE you will see the blue fedora icon in each utility.
If you check my uploaded wallpapers and screenshots you'll see what I mean. Enjoy!
(Fedora Core RoCkS!@)