Thanks in advance.
I would guess it is part of the GTK+ (GIMP ToolKit):
sauron.deepsoft.com% rpm -qi gtk+
Name : gtk+ Relocations: (not relocatable)
Version : 1.2.10 Vendor: CentOS
Release : 36 Build Date: Thu 03 May 2007 06:33:48 AM EDT
Install Date: Wed 04 Jul 2007 08:19:04 PM EDT Build Host: builder4.centos.org
Group : System Environment/Libraries Source RPM: gtk+-1.2.10-36.src.rpm
Size : 2213301 License: LGPL
Signature : DSA/SHA1, Sat 05 May 2007 09:32:36 AM EDT, Key ID a53d0bab443e1821
URL : http://www.gtk.org
Summary : The GIMP ToolKit (GTK+), a library for creating GUIs for X.
Description :
The gtk+ package contains the GIMP ToolKit (GTK+), a library for
creating graphical user interfaces for the X Window System. GTK+ was
originally written for the GIMP (GNU Image Manipulation Program) image
processing program, but is now used by several other programs as
well.
I believe there is a MS-Windows port of the GTK+ libraries.
>
> Thanks in advance.
>
--
Robert Heller -- 978-544-6933
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