Default themes

The alpha9 release has choice of default wallpaper image. I have now added choice of default GTK theme, desktop/menu icons theme, and JWM theme.

For the desktop icons theme, the chosen theme icons are copied into /usr/local/lib/X11/pixmaps from /usr/local/lib/X11/pixmaps at first boot. So as to know which icon-set to copy, I have created /etc/desktop_icon_theme. This file is created by 3builddistro and is also modified by /usr/sbin/icon_switcher and /usr/sbin/icon_switcher_cli. I also modified /etc/rc.d/rc.update.

Tags: woof