adam@dWorkstation:~$ apt-cache show rox-filer
Package: rox-filer
Priority: optional
Section: x11
Installed-Size: 3629
Maintainer: The ROX-in-Debian Project Team <pkg-rox-devel@lists.alioth.debian.org>
Architecture: i386
Source: rox
Version: 2.5-1
Depends: libatk1.0-0 (>= 1.12.1), libc6 (>= 2.3.6-6), libcairo2 (>= 1.2.0), libfontconfig1 (>= 2.3.0), libglib2.0-0 (>= 2.10.0), libgtk2.0-0 (>= 2.8.0), libice6, libpango1.0-0 (>= 1.12.3), libsm6, libx11-6, libxcursor1 (>> 1.1.2), libxext6, libxfixes3, libxi6, libxinerama1, libxml2 (>= 2.6.26), libxrandr2, libxrender1, shared-mime-info (>= 0.16)
Suggests: file, menu
Filename: pool/main/r/rox/rox-filer_2.5-1_i386.deb
Size: 1478494
MD5sum: cc88566439e03f0ccbe0d4c7f0b72c3b
SHA1: afae9371e5bd29a88964c486e32b8ddeb3f92485
SHA256: 03f226a2004a3df6e7f3852767f5c416483ceba9f91118b449106b45e4672c74
Description: A simple graphical file manager for X11
 ROX-Filer is a simple and easy to use graphical file manager
 for X11 based on the GTK2 library. It uses a uniform
 drag-and-drop approach for every operation.
 .
 It is also the core component of the ROX Desktop Environment.
 .
 Invoking rox opens each directory or file listed,  or  the
 current working directory if no arguments are given.
 .
Tag: interface::x11, role::program, scope::application, uitoolkit::gtk, use::browsing, works-with::file, x11::application

adam@dWorkstation:~$ apt-cache show thunar
Package: thunar
Priority: optional
Section: x11
Installed-Size: 2604
Maintainer: Debian Xfce Maintainers <pkg-xfce-devel@lists.alioth.debian.org>
Architecture: i386
Version: 0.4.0rc1-3
Replaces: libthunar-vfs-dev (<= 0.3.0beta1-2)
Depends: libatk1.0-0 (>= 1.12.2), libc6 (>= 2.3.6-6), libcairo2 (>= 1.2.4), libdbus-1-3 (>= 0.94), libdbus-glib-1-2 (>= 0.71), libexo-0.3-0 (>= 0.3.1.12rc2-1), libfreetype6 (>= 2.2), libglib2.0-0 (>= 2.12.0), libgtk2.0-0 (>= 2.8.0), libice6 (>= 1:1.0.0), libpango1.0-0 (>= 1.14.8), libsm6, libthunar-vfs-1-2 (>= 0.4.0rc1-1), libxfce4util4 (>= 4.3.99.2), xfce4-panel (>= 4.3.99.2), desktop-file-utils, shared-mime-info
Recommends: hal, pmount
Conflicts: libthunar-vfs-1 (<= 0.2.0alpha-r19548-3)
Filename: pool/main/t/thunar/thunar_0.4.0rc1-3_i386.deb
Size: 919282
MD5sum: b5d0d3e3e00b5c7d38b6148917615cea
SHA1: 06fd5a35166feafb77ef91a1eb49f89d19a09c5d
SHA256: c4f001e6c4feff11366f18d33b94dae0a4e8960e8b82923a88839b387350f396
Description: File Manager for Xfce
 Thunar is the file manager designed to be the default file manager of Xfce 4.4
 It has been designed to be fast and easy to use.
 .
 Please read README.Debian concerning volume management stuff.
Tag: uitoolkit::gtk

adam@dWorkstation:~$