Several scripts are being used in version 5.02.XX of GuppY, you will find the list below.

We do address all our thanks to their authors for their work and for choosing licencesallowing their scripts to be freely used.
 

CKEditor
  Copyright (c) 2003-2014, CKSource - Frederico Knabben. All rights reserved.
  For licensing, see LICENSE.html or http://ckeditor.com/license

Color picker
  Author: Stefan Petre www.eyecon.ro
  Dual licensed under the MIT and GPL licenses

PHPMailer
  Contact: via sourceforge.net support pages (also www.worxware.com)
  Info: http://phpmailer.sourceforge.net
  Authors: Andy Prevost (codeworxtech) codeworxtech@users.sourceforge.net
         : Marcus Bointon (coolbru) coolbru@users.sourceforge.net
  License: Distributed under the Lesser General Public License (LGPL)
    http://www.gnu.org/copyleft/lesser.html

Lightbox
  by Lokesh Dhakar - http://www.lokeshdhakar.com
  http://lokeshdhakar.com/projects/lightbox2/
  Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
  - free for use in both personal and commercial projects
  - attribution requires leaving author name, author link, and the license info intact

Lytebox
  Author: Markus F. Hay
  Website: http://lytebox.com  (http://dolem.com/lytebox)
  Date: January 26, 2012
  License: Creative Commons Attribution 3.0 License (http://creativecommons.org/licenses/by/3.0/)

Mobile_Detect
 Current authors: Serban Ghita <serbanghita@gmail.com>
                                Nick Ilyin <nick.ilyin@gmail.com>
 Original author: Victor Stanciu <vic.stanciu@gmail.com>
 License  Code and contributions have 'MIT License'
                  More details: https://github.com/serbanghita/Mobile-Detect/blob/master/LICENSE.txt

HTML Purifier
  Author: Edward Z. Yang
  Website:http://htmlpurifier.org/
  License: Distributed under the Lesser General Public License (LGPL)
    http://www.gnu.org/copyleft/lesser.html

Highlight
  Author: Ivan Sagalaev <maniac@softwaremaniacs.org>
  Website: https://github.com/isagalaev/highlight.js/tree/master/src/styles
  Modified by Lud Bienaimé (Saxbar) for GuppY v5.02.00+
  License: BSD 3-clause "New" or "Revised" License

Unite Gallery
general purpose responsive gallery jquery plugin created: 06/20/2014 by valiano email: web.power.net@gmail.com
Modified by Lud Bienaimé (Saxbar) for GuppY v5.02.00+
License: MIT License
Product Link: unitegallery.net

Liquid Slider
A Responsive jQuery HTML Content Slider
By Kevin Batdorf - Update August 2017...
Slider is a little dated but still works as well as ever.
https://github.com/KevinBatdorf/liquidslider/zipball/master