theme. If your Theme Manager has a theme (Web host sites)
theme. If your Theme Manager has a theme customization section on thebottom with buttons (like Fedora s), you may have to click in each of those to find your new theme s information. Tweaking the GUI s InnardsBehind GNOME and KDE lurks the X Window System, or X. X provides theskeletal GUI structure and functionality. GNOME and KDE make use of thisskeleton to provide you with a pleasant GUI environment. Whenever you con- figure hardware or other basic GUI features like resolution, you actually workwith X, and not GNOME or KDE. In this section, I introduce you to the criticalcomponents of X and point you to some useful X configuration tools. The /etc/X11/XF86Config,/etc/X11/XF86Config-4, or /etc/X11/xorg. conf file contains your X configuration. (All three files look the same inside.) Although this file is just a normal text file, the format is complicated and con- fusing. Rather than make you work with this file by hand, the various Linuxdistributions provide a number of tools. (See Chapter 20 for which toolcomes with which distribution.) If you really enjoy experimenting with GUIs and fiddling with them, you cando a number of things. Go to www.linuxdoc.organd read the various XWindow System and XFree86-related HOWTO files. Some are quite technical, but some are a bit more friendly, and you may be surprised by just how muchyou can tweak the Linux GUI. You can also find www.gnome.organd www. kde.org, as well as dozens of other useful sites out there. 305Chapter 15: Gettin Gooey with the GUIs21_