%% The LaTeX package tcolorbox - version 2.02 (2013/03/13)
%%
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%% Copyright (c) 2006-2012 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
%% -------------------------------------------------------------------------------------------
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%% This work consists of all files listed in README
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(2006-2011): pre publication usage

version 1.00 (2011/12/08): initial public release

version 1.01 (2012/01/26):
- dates amended to \RequirePackage(s)
- provision of the tcolorbox.tds.zip file for easier installation

version 1.02 (2012/02/15)
- documentation language changed from German to English
- small correction of the theorem title line appearance

version 1.10 (2012/03/01)
- tcblatex style for listings changed (nolol added)
- improved hyperref support
- new keys parskip and noparskip
- source code of the documentation added
- new library 'documentation' to support LaTeX documentations
  with several library commands, environments and keys (see documentation)

version 1.20 (2012/03/16)
- new geometry keys:
  'lefttitle', 'leftupper', 'leftlower', 'righttitle', 'rightupper', 'rightlower'
  and implementation changed for 'left' and 'right'
- implementation for tcolorbox changed (adaption to height options)
- new fixed height option keys:
  'natural height', 'height', 'equal height group', 'minimum for equal height group',
  'space', 'space to upper', 'space to lower', 'space to both', 'split',
  'valign', 'valign lower',
  'adjusted title'
- new bounding box option keys:
  'enlarge top by', 'enlarge bottom by', 'enlarge left by', 'enlarge right by',
  'toggle enlargement'
- preparations for a future skin changing option implemented
- commands \brackets and \docAuxCommand added to the documentation library
- documentation rearranged

version 1.30 (2012/04/20)
- several internal code changes to provide a 'skin' exchange mechanism
- new keys for the core package:
  'frame engine', 'interior titled engine', 'interior engine', 'segmentation engine'
  'skin', 'graphical environment', 'geometry nodes', 'colupper', 'collower'
- tcolorbox now defined as 'long' macro
- new keys for the library 'listings':
  'comment', 'listing and comment', 'comment and listing'
- new library 'skins' with the skins
  'standard', 'enhanced', 'freelance', 'bicolor', 'beamer', 'widget'
- keys for the library 'skins':
  'frame style', 'interior style', 'segmentation style'
  'frame code', 'interior titled code', 'interior code', 'segmentation code',
  'colbacklower'

version 2.00 (2013/03/01)
- breaking news: the new library 'breakable' adds breaking support to tcolorbox.
- e-TeX now used instead of calc
- new key 'adjust text' and new implementation for 'adjusted title'
- new geometry keys:
  'toprule', 'toprule at break', 'bottomrule', 'bottomrule at break',
  'leftrule', 'rightrule', 'titlerule', 'outer arc', 'auto outer arc',
  'toptitle', 'bottomtitle'
- new bounding box keys:
  'enlarge top at break by', 'enlarge bottom at break by'
- new overlay keys:
  'overlay', 'no overlay', 'overlay broken', 'overlay unbroken',
  'overlay first', 'overlay middle', 'overlay last',
  'overlay unbroken and first', 'overlay middle and last'
- new key: 'parbox' to change text behaviour
- new library 'breakable' for breakable boxes with the new keys:
  'breakable', 'unbreakable', 'title after break', 'notitle after break',
  'adjusted title after break', 'lines before break', 'shrink break goal'
- new keys for the 'skins' library
  'skin first', 'skin middle', 'skin last', 'title engine', 'pathfirst',
  'pathmiddle', 'pathlast', 'title style', 'title code', 'enhancedfirst',
  'enhancedmiddle', 'enhancedlast', 'enhanced', 'marker', 'bicolor',
  'bicolorfirst', 'bicolormiddle', 'bicolorlast', 'beamer',
  'beamerfirst', 'beamermiddle', 'beamerlast', 'draft', 'freelance', 'standard'
- NOTE: skins 'beamer' and 'widget' changed
  use the new style options 'beamer' and 'widget' to get the old appearance
- new watermark keys:
  'watermark text', 'watermark text on', 'watermark graphics',
  'watermark graphics on', 'watermark tikz', 'watermark tikz on',
  'no watermark', 'watermark opacity', 'watermark color',
  'watermark zoom', 'watermark stretch'

version 2.01 (2013/03/07)
- bug fix: superfluous vertical space for a breakable box which appeared after a page break
- bug fix: height computation error when a broken boxed starts with a segmentation line
- new key for the 'listings' library:
  'listing inputencoding'
- new library 'listingsutf8' as variant of 'listings' with new key
  'listing utf8'
- keys 'toprule at break', 'bottomrule at break',
  'enlarge top at break by', 'enlarge bottom at break by'
  moved from core package to 'breakable' library.
- new keys for the 'breakable' library:
  'topsep at break', 'bottomsep at break', 'pad before break',
  'pad after break', 'pad at break'

version 2.02 (2013/03/13)
- minor bug fix: segmentation line of 'enhanced' now matches 'standard'
- new macro '\tcbox' to draw a colorbox fitted to the content width
- new key 'autoparskip' to detect usage of package parskip automatically
- new key 'nobeforeafter'
- new macro '\tcbline' in the 'skins' library to draw 'just lines'
- new key 'colbacktitle' for the 'skins' library
