Xresources für xdm: /usr/lib/X11R6/lib/X11/xdm/Xresources ( Centos 4.4 )
/usr/lib/X11R6/lib/X11/xdm/Xresources
xterm
.Xresources :
.Xresources
*background: #ff0000 xterm*background: #00ff00
xrdb -merge .Xresources xrdb -query | grep back ls /usr/share/X11/app-defaults/