tcolorbox (27apr16)

git-svn-id: svn://tug.org/texlive/trunk@40792 c570f23f-e606-0410-a88d-b1316a301751

32 files changed, 1252 insertions, 74 deletions

diff --git a/Master/texmf-dist/doc/latex/tcolorbox/CHANGES b/Master/texmf-dist/doc/latex/tcolorbox/CHANGES
index ca5fba5bc7d..e406f526253 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/CHANGES
+++ b/Master/texmf-dist/doc/latex/tcolorbox/CHANGES
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.90 (2016/02/29)
+%% The LaTeX package tcolorbox - version 3.91 (2016/04/27)
 %%
 %% -------------------------------------------------------------------------------------------
 %% Copyright (c) 2006-2016 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
@@ -875,3 +875,30 @@ version 3.90 (2016/02/29)
     'raster multicolumn', 'raster multirow'
 - library 'documentation':
   removal of some unwanted blanks
+
+version 3.91 (2016/04/27)
+- bug fix: '\tcbline' was indented when setting '\parindent' inside a box
+- bug fix: 'minimum for equal height group' changed current equal height group
+    and settings with 'em' or 'ex' units were converted to 0pt
+- bug fix: setting '-output-directory' and 'outputdir=' for the minted package
+    broke \tcblisting for 'listing engine=minted'
+- documentation: biber problem with latin1 encoding circumvented
+- new options:
+  'minimum for current equal height group'
+- library 'theorems':
+  * new option: 'label separator'
+- new library 'vignette' for ornamental frames:
+  * new fadings: 'semi west', 'semi east', 'semi north', 'semi south'
+  * new macros: '\tcbvignette'
+  * new options:
+    'xmin', 'xmax', 'ymin', 'ymax',
+    'lower left corner', 'upper right corner', 'inside node', 'outside node',
+    'over node', 'over node offset', 'north size', 'south size', 'east size',
+    'west size', 'size', 'north style', 'south style', 'east style', 'west style',
+    'draw method', 'fade out', 'semi fade out', 'fade in', 'semi fade in',
+    'base color', 'raised color', 'lowered color',
+    'underlay vignette', 'underlay raised fading vignette',
+    'underlay raised shading vignette', 'underlay shade in vignette',
+    'finish vignette', 'finish raised fading vignette', 'finish fading vignette'
+- library 'raster':
+  * new environment: 'tcboxeditemize'
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/README b/Master/texmf-dist/doc/latex/tcolorbox/README
index 55be40956e3..6301cd0b820 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/README
+++ b/Master/texmf-dist/doc/latex/tcolorbox/README
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.90 (2016/02/29)
+%% The LaTeX package tcolorbox - version 3.91 (2016/04/27)
 %%
 %% -------------------------------------------------------------------------------------------
 %% Copyright (c) 2006-2016 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
@@ -43,6 +43,7 @@ Contents of the package
   'tcbskins.code.tex'         LaTeX package file (library of tcolorbox)
   'tcbskinsjigsaw.code.tex'   LaTeX package file (library of tcolorbox)
   'tcbtheorems.code.tex'      LaTeX package file (library of tcolorbox)
+  'tcbvignette.code.tex'      LaTeX package file (library of tcolorbox)
   'tcbxparse.code.tex'        LaTeX package file (library of tcolorbox)
   'blueshade.png'             Picture (package)
   'crinklepaper.png'          Picture (package)
@@ -76,6 +77,7 @@ Alternatively, put the files to their respective locations within the TeX instal
   'tcbskins.code.tex'         ->  /tex/latex/tcolorbox
   'tcbskinsjigsaw.code.tex'   ->  /tex/latex/tcolorbox
   'tcbtheorems.code.tex'      ->  /tex/latex/tcolorbox
+  'tcbvignette.code.tex'      ->  /tex/latex/tcolorbox
   'tcbxparse.code.tex'        ->  /tex/latex/tcolorbox
   'blueshade.png'             ->  /tex/latex/tcolorbox
   'crinklepaper.png'          ->  /tex/latex/tcolorbox
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox-example.pdf b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox-example.pdf
index 57d5ba6e149..f5a41c289dc 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox-example.pdf
+++ b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox-example.pdf
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox-example.tex b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox-example.tex
index ef72f3a4197..3d1438cb5c8 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox-example.tex
+++ b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox-example.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.90 (2016/02/29)
+%% The LaTeX package tcolorbox - version 3.91 (2016/04/27)
 %% tcolorbox-example.tex: an example for tcolorbox
 %%
 %% -------------------------------------------------------------------------------------------
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.coreoptions.tex b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.coreoptions.tex
index 09318e42bb5..736ec69c11f 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.coreoptions.tex
+++ b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.coreoptions.tex
@@ -1965,6 +1965,25 @@ with a listing.
 \end{dispExample}
 \end{docTcbKey}
 
+
+\begin{docTcbKey}[][doc new=2016-03-24]{minimum for current equal height group}{=\meta{length}}{no default, initially unset}
+  Sets \refKey{/tcb/minimum for equal height group} for the current equal height
+  group. Apparently, this only works for an already known equal height group, i.e.
+  \refKey{/tcb/equal height group} has to be set \emph{before} this option is used.
+  This option is likely to be used in combination with \refKey{/tcb/raster equal height}
+
+\begin{dispExample}
+% \tcbuselibrary{raster}
+\begin{tcbitemize}[raster equal height,colframe=blue!75!black,colback=white,
+  raster every box/.style={minimum for current equal height group=2cm}]
+  \tcbitem A
+  \tcbitem B
+\end{tcbitemize}
+\end{dispExample}
+
+\end{docTcbKey}
+
+
 \clearpage
 \begin{docTcbKey}[][doc new and updated={2015-11-27}{2016-02-22}]{use height from group}{\colOpt{=\meta{id}}}{style, default current group}
   Sets the current box to a fixed \refKey{/tcb/height} which is copied from
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.external.tex b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.external.tex
index 139a1ca799f..1d8c4172409 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.external.tex
+++ b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.external.tex
@@ -193,7 +193,7 @@ the text before and after have to be given separately outside the
   \begin{tcbexternal}[minipage]{example_tcolorbox2}
     \color{white}%
     The interior of the tcolorbox is externalized.
-    One can use numbered boxes without problem.
+    One can use numbered boxes without problems.
     Note that the text color has to be set for the text manually
     since it is converted into an image.
   \end{tcbexternal}
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.initoptions.tex b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.initoptions.tex
index b408632b921..b11f0760348 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.initoptions.tex
+++ b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.initoptions.tex
@@ -208,7 +208,7 @@ Feasible values for \meta{name} are:
 \begin{itemize}
 \item\docValue{figures}: blend into the standard |figure| environment.
 \item\docValue{tables}: blend into the standard |table| environment.
-\item\docValue{listings}: blend into the standard |lstlistings| environment
+\item\docValue{listings}: blend into the standard |lstlisting| environment
   of the package |listings| \cite{heinz:2015a}.
   \begin{marker}
   Note that |blend into=listings| can only be used in the document content
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.intro.tex b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.intro.tex
index 3f75aeb9f11..2a15909bcd0 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.intro.tex
+++ b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.intro.tex
@@ -89,6 +89,11 @@ The following keys are used inside |\tcbuselibrary| respectively
   Section~\ref{sec:skins} from page~\pageref{sec:skins}.
 \end{docTcbKey}
 
+\begin{docTcbKey}[library]{vignette}{}{\mylib{vignette}}
+  Provides code for more ornamental; see
+  Section~\ref{sec:vignette} from page~\pageref{sec:vignette}.
+\end{docTcbKey}
+
 \begin{docTcbKey}[library]{raster}{}{\mylib{raster}}
   Provides additional macros and options for typesetting multiple
   boxes arranged in a kind of raster;
@@ -143,12 +148,12 @@ The following keys are used inside |\tcbuselibrary| respectively
   see Section~\ref{sec:hooks} from page~\pageref{sec:hooks}.
 \end{docTcbKey}
 
+\clearpage
 \begin{docTcbKey}[library]{xparse}{}{\mylib{xparse}}
   Provides document command production with |xparse| for |tcolorbox|;
   see Section~\ref{sec:xparse} from page~\pageref{sec:xparse}.
 \end{docTcbKey}
 
-\clearpage
 \begin{docTcbKey}[library]{external}{}{\mylib{external}}
   Provides externalization support for stand-alone document snippets,
   see \Fullref{sec:external}.
@@ -194,6 +199,7 @@ The following keys are used inside |\tcbuselibrary| respectively
     raster equal height,beamer,colframe=blue!50!black,colback=blue!10!white]
   \tcbitem[adjusted title=Advanced Features]
     \mylib{skins}\\
+    \mylib{vignette}\\
     \mylib{raster}\\
     \mylib{breakable}\\
     \mylib{magazine}\\
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.picturecredits.tex b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.picturecredits.tex
index 156e075d905..0b9db2bbd15 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.picturecredits.tex
+++ b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.picturecredits.tex
@@ -7,7 +7,8 @@ The following pictures were used inside this documentation.
 
 \DeclareTotalTColorBox{\diabox}{ O{} v  m }
   { bicolor,fonttitle=\bfseries\ttfamily,adjusted title={#2},center title,
-    colframe=blue!20!black,leftupper=0mm,rightupper=0mm,colback=black!75!white,#1}
+    colframe=blue!20!black,leftupper=0mm,rightupper=0mm,colback=black!75!white,
+    finish vignette={size=1.5mm},#1}
   { \tikz\path[fill zoom image={#2}] (0,0) rectangle (\linewidth,4cm);%
     \tcblower#3}
 
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.raster.tex b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.raster.tex
index 009552f1a3b..8ea4cbc3a4d 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.raster.tex
+++ b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.raster.tex
@@ -212,8 +212,29 @@ If \refKey{/tcb/fit} should be used, turn over to \refEnv{tcbraster}.
     \begin{tcolorbox}Seven\end{tcolorbox}
 \end{tcbraster}
 \end{dispExample}
+\end{docEnvironment}
 
 
+\clearpage
+\begin{docEnvironment}[doc new=2016-04-27]{tcboxeditemize}{\oarg{raster options}\marg{box options}}
+  This is a convenience environment which combines a \refEnv{tcolorbox} with
+  an embedded \refEnv{tcbitemize}. The \meta{box options} are given to the
+  outer \refEnv{tcolorbox}, while the \meta{raster options} are given to the
+  embedded \refEnv{tcbitemize}.
+  This environment is especially useful for rasters inside rasters.
+
+\begin{dispExample}
+\begin{tcboxeditemize}[raster columns=3, raster equal height,
+  size=small,colframe=red!50!black,colback=red!10!white,colbacktitle=red!50!white,
+  title={Box \# \thetcbrasternum}]
+  {colback=yellow!10,fonttitle=\bfseries,title=Boxed Itemize}
+  \tcbitem First box
+  \tcbitem Second box
+  \tcbitem This is a box\\with a second line
+  \tcbitem Another box
+  \tcbitem A box again
+\end{tcboxeditemize}
+\end{dispExample}
 \end{docEnvironment}
 
 
@@ -438,6 +459,7 @@ If \refKey{/tcb/fit} should be used, turn over to \refEnv{tcbraster}.
   Puts the enclosed boxes into a common \refKey{/tcb/equal height group}.
   The \meta{id} of the equal height group is chosen automatically, but
   it may be set manually by \refKey{/tcb/raster equal height group}.
+  Also see \refKey{/tcb/minimum for current equal height group}.
 
   Feasible values for \meta{type} are:
   \begin{itemize}
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.s_main.sty b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.s_main.sty
index 560b9b45b3e..0fbf2d64a0b 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.s_main.sty
+++ b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.s_main.sty
@@ -68,11 +68,11 @@
 \tcbmakedocSubKey{newTcbKey}{tcb/new}
 \tcbmakedocSubKey{boxTcbKey}{tcb/boxtitle}
 \tcbmakedocSubKey{extTcbKey}{tcb/external}
+\tcbmakedocSubKey{vigTcbKey}{tcb/vig}
 \tcbmakedocSubKey{docTikzKey}{tikz}
 
 \def\tikzname{Ti\emph{k}Z}
 
-\makeatletter
 \newrobustcmd{\tcbIndexPrintSkinCA}[1]{\tcb@Index@Print@CA{#1}{\kvtcb@col@key}{Skin}}
 \newrobustcmd{\tcbIndexPrintSkinC}[1]{\tcb@Index@Print@C{#1}{\kvtcb@col@key}}
 \def\tcb@index@Skin#1{\iftcb@doc@toindex\index{#1\idx@actual\tcbIndexPrintSkinCA{#1}}\index{Skins\idx@level#1\idx@actual\tcbIndexPrintSkinC{#1}}\fi}%
@@ -83,7 +83,16 @@
   \end{tcb@doc@head}}%
   {\end{tcb@manual@entry}}
 \def\refSkin{\tcb@ref@doc{skin}}
-\makeatother
+
+\newrobustcmd{\tcbIndexPrintFadCA}[1]{\tcb@Index@Print@CA{#1}{\kvtcb@col@value}{fading}}
+\newrobustcmd{\tcbIndexPrintFadC}[1]{\tcb@Index@Print@C{#1}{\kvtcb@col@value}}
+\def\tcb@Print@Fad#1{\textcolor{\kvtcb@col@value}{\bfseries\tcb@scantokens{#1}}}
+\def\tcb@index@Fad#1{\iftcb@doc@toindex\kvtcb@index@command{#1\idx@actual\tcbIndexPrintFadCA{#1}}\kvtcb@index@command{Fadings\idx@level#1\idx@actual\tcbIndexPrintFadC{#1}}\fi}
+
+\DeclareDocumentCommand\docFading{sm}{%
+  \tcb@Print@Fad{#2}%
+  \IfBooleanTF{#1}{}{\tcb@index@Fad{#2}}%
+}
 
 \newtcolorbox{marker}[1][]{enhanced,
   before skip=2mm,after skip=3mm,
@@ -146,6 +155,8 @@
     tcbincludegraphics,tcbincludepdf,pdfpages,imagepage,imagepath,imagename,
     tcbline,tcboxedtitleheight,tcboxedtitlewidth,
     tcbsettowidthofnode,tcbsetmacrotowidthofnode,tcbsettoheightofnode,tcbsetmacrotoheightofnode,
+    % vignette
+    tcbvignette,
     % xparse
     DeclareTColorBox,NewTColorBox,RenewTColorBox,ProvideTColorBox,
     DeclareTotalTColorBox,NewTotalTColorBox,RenewTotalTColorBox,ProvideTotalTColorBox,
@@ -185,7 +196,7 @@
     after skip=8pt plus 4pt minus 2pt
   },
   base example/.style={bicolor,
-    beforeafter example,arc is angular,
+    beforeafter example,arc is angular,fonttitle=\bfseries,
     fontlower=\footnotesize,
     colframe=Blue_Dark,
     colback=Blue_Bright,
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.theorems.tex b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.theorems.tex
index 86d55451b8e..0ef0f86af09 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.theorems.tex
+++ b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.theorems.tex
@@ -25,7 +25,8 @@ This also loads the package |amsmath|.
   used only in rare cases.
   The first mandatory parameter is the title text for the theorem and
   the second mandatory parameter is a \meta{marker}. The theorem is
-  automatically labeled with \meta{prefix}|:|\meta{marker}.\par
+  automatically labeled with \meta{prefix}\meta{separator}\meta{marker}
+  where \meta{separator} is predefined as '|:|', see \refKey{/tcb/label separator}.\par
   The new environment \meta{name}|*| takes one optional and one mandatory
   parameter and represents an unnumbered variant of the environment \meta{name}.
   This variant is not labeled and not listed in lists of theorems.
@@ -89,7 +90,8 @@ This also loads the package |amsmath|.
   used only in rare cases.
   The first mandatory parameter is the title text for the theorem and
   the second mandatory parameter is a \meta{marker}. The theorem is
-  automatically labeled with \meta{prefix}|:|\meta{marker}.
+  automatically labeled with \meta{prefix}\meta{separator}\meta{marker}
+  where \meta{separator} is predefined as '|:|', see \refKey{/tcb/label separator}.
 \end{deprecated}
 \end{docCommand}
 
@@ -355,6 +357,24 @@ Sets \refKey{/tcb/terminator sign} to the default empty text.
 \end{docTcbKey}
 
 
+\begin{docTcbKey}[][doc new=2016-04-19]{label separator}{=\meta{separator}}{no default, initially |:|}
+  The given \meta{separator} is used for labels created with environments which
+  are defined themselves by \refCom{newtcbtheorem}. This \meta{separator} is
+  put between \meta{prefix} (defined by \refCom{newtcbtheorem})
+  and \meta{marker} (defined by an actual theorem environment).
+\begin{dispExample}
+\newtcbtheorem[use counter from=mytheo]{sometheorem}{Theorem}%
+  {colback=white,colframe=red!50!black,fonttitle=\bfseries,
+   label separator=*}{theo}
+\begin{sometheorem}{My example}{myex}
+My theorem text.
+\end{sometheorem}
+See Example~\ref{theo*myex}.
+\end{dispExample}
+\end{docTcbKey}
+
+
+\clearpage
 \begin{docTcbKey}{theorem name and number}{}{style, no value, initially set}
 Prints theorem name followed by theorem number inside the title.
 \begin{dispExample}
@@ -367,7 +387,7 @@ My theorem text.
 \end{dispExample}
 \end{docTcbKey}
 
-\clearpage
+
 \begin{docTcbKey}{theorem number and name}{}{style, no value}
 Prints theorem number followed by theorem name inside the title.
 \begin{dispExample}
@@ -392,7 +412,7 @@ My theorem text.
 \end{dispExample}
 \end{docTcbKey}
 
-
+\clearpage
 \begin{docTcbKey}{theorem}{=\marg{display name}\marg{counter}\marg{title}\marg{marker}}{no default}
   This key is internally used by \refCom{tcbmaketheorem}, but can be used
   directly in a |tcolorbox| for a more flexible approach.
@@ -412,7 +432,7 @@ created by hand or using \refCom{tcbmaketheorem} or using its successor
 \refCom{newtcbtheorem}.
 \end{docTcbKey}
 
-\clearpage
+
 \begin{docTcbKey}{highlight math}{}{style, no value}
   Predefined style which is used for \refCom{tcbhighmath}.
   It can be changed comfortable with \refKey{/tcb/highlight math style}.
@@ -439,6 +459,7 @@ created by hand or using \refCom{tcbmaketheorem} or using its successor
 \end{dispExample}
 \end{docTcbKey}
 
+\clearpage
 \begin{docTcbKey}{math upper}{}{style, no value}
   Sets the upper part to mathematical mode with font |\displaystyle|.
 \end{docTcbKey}
@@ -457,7 +478,6 @@ created by hand or using \refCom{tcbmaketheorem} or using its successor
 \end{docTcbKey}
 
 
-\clearpage
 \begin{marker}
   The following styles are only tested to work with the original |amsmath| environments.
   If e.g. the |equation| environment is redefined as |gather|, then
@@ -495,6 +515,7 @@ created by hand or using \refCom{tcbmaketheorem} or using its successor
   of the lower part.
 \end{docTcbKey}
 
+\enlargethispage*{1cm}
 \begin{docTcbKey}[][doc updated=2014-10-30]{ams equation*}{}{style, no value}
   Adds an |amsmath| |equation*| environment to the start and end
   of the upper \emph{and} lower part.
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.vignette.tex b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.vignette.tex
new file mode 100644
index 00000000000..fc80dc54dfd
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.vignette.tex
@@ -0,0 +1,747 @@
+% !TeX root = tcolorbox.tex
+% include file of tcolorbox.tex (manual of the LaTeX package tcolorbox)
+\clearpage
+\section{Library \mylib{vignette}}\label{sec:vignette}%
+\tcbset{external/prefix=external/vignette_}%
+The library is loaded by a package option or inside the preamble by:
+\begin{dispListing}
+\tcbuselibrary{vignette}
+\end{dispListing}
+This also loads the \mylib{skins} library, see \Fullref{sec:skins},
+and the |fadings| library of |tikz| \cite{tantau:2015a}.
+
+
+\subsection{Vignette Drawing}\label{subsec:vignettedrawing}
+
+\begin{docCommand}[doc new=2016-04-22]{tcbvignette}{\marg{options}}
+  In this context, a \emph{vignette} is a four part rectangular frame.
+  It is constructed as several \tikzname\ paths and, therefore, can only be
+  used inside a |tikzpicture| environment or inside \refEnv{tcolorbox} options.
+
+  The \meta{options} control position, size and style settings of the vignette.
+  Theses options have the common key path |/tcb/vig/| and are described in
+  the following.
+
+  The next examples show direct \refCom{tcbvignette} usage without
+  a \refEnv{tcolorbox}.
+
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \tcbvignette{}
+\end{tikzpicture}
+\end{dispExample*}
+
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \node[draw,fill=blue!15!white] (A) {Test};
+  \tcbvignette{outside node=A,raised color=blue}
+\end{tikzpicture}
+\end{dispExample*}
+
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \node[draw,fill=blue!15!white] (A) {Another Test};
+  \tcbvignette{size=3mm,outside node=A,
+    north style=red,east style=yellow,
+    south style=blue,west style=green}
+\end{tikzpicture}
+\end{dispExample*}
+
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \node[inner sep=3mm,fill=red!75] (A) {Test};
+  \tcbvignette{over node=A,fade in}
+\end{tikzpicture}
+\end{dispExample*}
+
+\refCom{tcbvignette} can be used directly inside appropriate options keys
+for \refEnv{tcolorbox}. Note that options like \refKey{/tcb/underlay} need
+\refKey{/tcb/enhanced} or similar settings.
+
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tcolorbox}[enhanced,size=small,sharp corners,
+  colback=green!10,colframe=green!50!black,
+  boxrule=1mm,titlerule=0mm,
+  title=My title,center title,fonttitle=\bfseries,
+  underlay={\tcbvignette{size=1mm,inside node=frame,
+      raised color=green!50!black}}]
+    This is a tcolorbox.
+\end{tcolorbox}
+\end{dispExample*}
+
+Mostly, convenient short cuts like \refKey{/tcb/underlay vignette} can
+be used to add a \emph{vignette} to a \refEnv{tcolorbox}. Here, \refCom{tcbvignette}
+is used internally.
+
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tcolorbox}[enhanced,size=small,sharp corners,
+  colback=green!10,colframe=green!50!black,
+  boxrule=1mm,titlerule=0mm,
+  title=My title,center title,fonttitle=\bfseries,
+  underlay vignette]
+    This is a tcolorbox.
+\end{tcolorbox}
+\end{dispExample*}
+
+\end{docCommand}
+
+
+
+\subsection{Generic Geometry Settings}\label{subsec:vignettegeometry}
+
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{xmin}{=\meta{length}}{no default, initially |0pt|}
+  Sets the lower horizontal limit of a \refCom{tcbvignette}.
+\end{vigTcbKey}
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{xmax}{=\meta{length}}{no default, initially |1cm|}
+  Sets the upper horizontal limit of a \refCom{tcbvignette}.
+\end{vigTcbKey}
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{ymin}{=\meta{length}}{no default, initially |0pt|}
+  Sets the lower vertical limit of a \refCom{tcbvignette}.
+\end{vigTcbKey}
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{ymax}{=\meta{length}}{no default, initially |1cm|}
+  Sets the upper vertical limit of a \refCom{tcbvignette}.
+\end{vigTcbKey}
+
+
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \fill [black!20] (0,0) rectangle (3,2);
+  \path [pattern=checkerboard,pattern color=black!30]
+    (0,0) rectangle (3,2);
+  \tcbvignette{xmin=1cm,xmax=2.5cm,ymin=0.5cm,ymax=1.75cm}
+\end{tikzpicture}
+\end{dispExample*}
+
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{lower left corner}{=\meta{coordinates}}{style, initially |0,0|}
+  Sets the lower left corner of a \refCom{tcbvignette}.
+  This style sets \refKey{/tcb/vig/xmin} and \refKey{/tcb/vig/ymin}.
+\end{vigTcbKey}
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{upper right corner}{=\meta{coordinates}}{style, initially |1,1|}
+  Sets the upper right corner of a \refCom{tcbvignette}.
+  This style sets \refKey{/tcb/vig/xmax} and \refKey{/tcb/vig/ymax}.
+\end{vigTcbKey}
+
+
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \fill [black!20] (0,0) rectangle (3,2);
+  \path [pattern=checkerboard,pattern color=black!30]
+    (0,0) rectangle (3,2);
+  \tcbvignette{lower left corner={1,0.5},
+               upper right corner={2.5,1.75}}
+\end{tikzpicture}
+\end{dispExample*}
+
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{inside node}{=\meta{name}}{style, initally unset}
+  Places the \refCom{tcbvignette} inside the node with the given \meta{name}.
+  The outer limits of the \emph{vignette} are adapted to the node geometry.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \node[minimum width=2cm,minimum height=1cm] (A) {Node A};
+  \tcbvignette{inside node=A}
+  \draw[very thick] (A.south west) rectangle (A.north east);
+\end{tikzpicture}
+\end{dispExample*}
+\end{vigTcbKey}
+
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{outside node}{=\meta{name}}{style, initally unset}
+  Places the \refCom{tcbvignette} outside the node with the given \meta{name}.
+  The inner limits of the \emph{vignette} are adapted to the node geometry.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \node[minimum width=2cm,minimum height=1cm] (A) {Node A};
+  \tcbvignette{outside node=A}
+  \draw[very thick] (A.south west) rectangle (A.north east);
+\end{tikzpicture}
+\end{dispExample*}
+\end{vigTcbKey}
+
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{over node}{=\meta{name}}{style, initally unset}
+  Places the \refCom{tcbvignette} over the node with the given \meta{name}.
+  The outer limits of the \emph{vignette} are adapted to the node geometry, but
+  are shifted to the outside by \refKey{/tcb/vig/over node offset}.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \node[minimum width=2cm,minimum height=1cm] (A) {Node A};
+  \tcbvignette{over node offset=1mm,over node=A}
+  \draw[very thick] (A.south west) rectangle (A.north east);
+\end{tikzpicture}
+\end{dispExample*}
+\end{vigTcbKey}
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{over node offset}{=\meta{length}}{no default, initially |0.1mm|}
+  Determines the shift value for \refKey{/tcb/vig/over node}.
+  Note that \refKey{/tcb/vig/over node offset} has to be set \emph{before}
+  \refKey{/tcb/vig/over node} is used.
+\end{vigTcbKey}
+
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{north size}{=\meta{length}}{no default, initially |2mm|}
+  Sets the thickness of the north \emph{vignette} part.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \tcbvignette{north size=4mm}
+\end{tikzpicture}
+\end{dispExample*}
+\end{vigTcbKey}
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{south size}{=\meta{length}}{no default, initially |2mm|}
+  Sets the thickness of the south \emph{vignette} part.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \tcbvignette{south size=4mm}
+\end{tikzpicture}
+\end{dispExample*}
+\end{vigTcbKey}
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{east size}{=\meta{length}}{no default, initially |2mm|}
+  Sets the thickness of the east \emph{vignette} part.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \tcbvignette{east size=4mm}
+\end{tikzpicture}
+\end{dispExample*}
+\end{vigTcbKey}
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{west size}{=\meta{length}}{no default, initially |2mm|}
+  Sets the thickness of the west \emph{vignette} part.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \tcbvignette{west size=4mm}
+\end{tikzpicture}
+\end{dispExample*}
+\end{vigTcbKey}
+
+\clearpage
+\begin{vigTcbKey}[][doc new=2016-04-22]{vertical size}{=\meta{length}}{style, initially |2mm|}
+  Sets \refKey{/tcb/vig/north size} and \refKey{/tcb/vig/south size},
+  to the given \meta{length}.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \tcbvignette{vertical size=4mm}
+\end{tikzpicture}
+\end{dispExample*}
+\end{vigTcbKey}
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{horizontal size}{=\meta{length}}{style, initially |2mm|}
+  Sets \refKey{/tcb/vig/east size} and \refKey{/tcb/vig/west size},
+  to the given \meta{length}.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \tcbvignette{horizontal size=4mm}
+\end{tikzpicture}
+\end{dispExample*}
+\end{vigTcbKey}
+
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{size}{=\meta{length}}{style, initially |2mm|}
+  Sets \refKey{/tcb/vig/north size}, \refKey{/tcb/vig/south size},
+  \refKey{/tcb/vig/east size}, and \refKey{/tcb/vig/west size} to the given \meta{length}.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \tcbvignette{size=4mm}
+\end{tikzpicture}
+\end{dispExample*}
+\end{vigTcbKey}
+
+
+\begin{marker}
+\refKey{/tcb/vig/north size}, \refKey{/tcb/vig/south size}, etc. have to
+be set \emph{before} \refKey{/tcb/vig/outside node} is used.
+\end{marker}
+
+
+
+\subsection{Generic Color and Style Settings}\label{subsec:vignettestyle}
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{north style}{=\marg{style}}{no default, initially |red!50!white|}
+  Sets \tikzname\ \meta{style} options for the north \emph{vignette} part.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \tcbvignette{north style=blue}
+\end{tikzpicture}
+\end{dispExample*}
+\end{vigTcbKey}
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{south style}{=\marg{style}}{no default, initially |red!50!black|}
+  Sets \tikzname\ \meta{style} options for the south \emph{vignette} part.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \tcbvignette{south style={draw=blue,fill=yellow}}
+\end{tikzpicture}
+\end{dispExample*}
+\end{vigTcbKey}
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{east style}{=\marg{style}}{no default, initially |red!75!black|}
+  Sets \tikzname\ \meta{style} options for the east \emph{vignette} part.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \tcbvignette{east style={left color=yellow!75!black,
+    right color=blue!75!black}}
+\end{tikzpicture}
+\end{dispExample*}
+\end{vigTcbKey}
+
+\clearpage
+\begin{vigTcbKey}[][doc new=2016-04-22]{west style}{=\marg{style}}{no default, initially |red!75!white|}
+  Sets \tikzname\ \meta{style} options for the west \emph{vignette} part.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \tcbvignette{west style={preaction={fill=black!20},
+    pattern=checkerboard,
+    pattern color=black!30}}
+\end{tikzpicture}
+\end{dispExample*}
+\end{vigTcbKey}
+
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{raised color}{=\meta{color}}{no default}
+  Creates a raised frame impression by setting the four style options
+  \refKey{/tcb/vig/north style},
+  \refKey{/tcb/vig/south style},
+  \refKey{/tcb/vig/east style}, and
+  \refKey{/tcb/vig/west style}
+  to darkened and lightened variations of the given \meta{color}.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \tcbvignette{raised color=blue}
+\end{tikzpicture}
+\end{dispExample*}
+\end{vigTcbKey}
+
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{lowered color}{=\meta{color}}{no default}
+  Creates a lowered frame impression by setting the four style options
+  \refKey{/tcb/vig/north style},
+  \refKey{/tcb/vig/south style},
+  \refKey{/tcb/vig/east style}, and
+  \refKey{/tcb/vig/west style}
+  to darkened and lightened variations of the given \meta{color}.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \tcbvignette{lowered color=green!75!black}
+\end{tikzpicture}
+\end{dispExample*}
+\end{vigTcbKey}
+
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{color from}{=\meta{inner} |to| \meta{outer}}{no default}
+  Sets the four style options
+  \refKey{/tcb/vig/north style},
+  \refKey{/tcb/vig/south style},
+  \refKey{/tcb/vig/east style}, and
+  \refKey{/tcb/vig/west style}
+  such that the color shades from the
+  \meta{inner} color to the \meta{outer} color.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \tcbvignette{color from=red to blue!50}
+\end{tikzpicture}
+\end{dispExample*}
+\end{vigTcbKey}
+
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{base color}{=\meta{color}}{no default}
+  Sets the base color for \refKey{/tcb/vig/raised color},
+  \refKey{/tcb/vig/lowered color}, \refKey{/tcb/finish fading vignette}.
+  Typically, this value has not to be set directly.
+\end{vigTcbKey}
+
+
+\clearpage
+\begin{vigTcbKey}[][doc new=2016-04-22]{draw method}{=\docValue{direct}\textbar\docValue{clipped}}{no default, initially |direct|}
+  Especially, if shadings or fadings are used, the drawn \emph{vignette}
+  graphs are displayed sometimes not as perfect as expected. Glitches and
+  imperfections are very dependent on the previewer software.
+  The \refKey{/tcb/vig/draw method} intends to give a choice of alternative
+  drawing methods.
+  \begin{itemize}
+  \item\docValue{direct}: The \emph{vignette} parts are drawn/filled
+    by using a single \tikzname\ graph. This is the preferred (and default)
+    method for solid color graphs.
+  \item\docValue{clipped}: The \emph{vignette} parts are drawn somewhat
+    oversized and are clipped to the intended region.
+    In combination with shadings and fadings this seems to give a
+    better/different optical result (depends on the previewer).
+  \end{itemize}
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \tcbvignette{color from=red to yellow}
+\end{tikzpicture}
+\end{dispExample*}
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \tcbvignette{color from=red to yellow,draw method=clipped}
+\end{tikzpicture}
+\end{dispExample*}
+
+\begin{marker}
+This option is a stopgap and may be changed or preferably removed in
+future.
+\end{marker}
+\end{vigTcbKey}
+
+
+
+\subsection{Generic Fading Settings}\label{subsec:vignettefading}
+
+The |fadings| library of |tikz| \cite{tantau:2015a} is loaded
+automatically by the \mylib{vignette} library.
+Amongst others, the fadings
+\docFading{west},
+\docFading{east},
+\docFading{north}, and
+\docFading{south} are defined inside the |fadings| library.
+
+The \mylib{vignette} library adds some more fadings called
+\docFading{semi west},
+\docFading{semi east},
+\docFading{semi north}, and
+\docFading{semi south}.
+These fadings are much \emph{weaker} than the normal fadings.
+
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \fill [black!20] (0,0) rectangle (1,1);
+  \path [pattern=checkerboard,pattern color=black!30]
+    (0,0) rectangle (1,1);
+  \fill [path fading=semi west,blue] (0,0) rectangle (1,1);
+\end{tikzpicture}
+\end{dispExample*}
+
+
+
+\begin{tcboxedraster}{base example,title=Comparison of the Fadings}
+  \def\doShadingExample#1{%
+    \begin{tcolorbox}[sbs,size=fbox,colback=white,lower separated=false,
+      righthand width=2cm,left=5mm]
+    \docFading{#1}\tcblower
+    \begin{tikzpicture}
+        \fill [black!20] (0,0) rectangle (1,1);
+        \path [pattern=checkerboard,pattern color=black!30] (0,0) rectangle (1,1);
+        \fill [path fading=#1,blue] (0,0) rectangle (1,1);
+    \end{tikzpicture}
+    \end{tcolorbox}}%
+  \doShadingExample{west}
+  \doShadingExample{east}
+  \doShadingExample{north}
+  \doShadingExample{south}
+  \doShadingExample{semi west}
+  \doShadingExample{semi east}
+  \doShadingExample{semi north}
+  \doShadingExample{semi south}
+\end{tcboxedraster}
+
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{fade in}{\colOpt{=\marg{style}}}{style, default |white|}
+  Sets the four style options
+  \refKey{/tcb/vig/north style},
+  \refKey{/tcb/vig/south style},
+  \refKey{/tcb/vig/east style}, and
+  \refKey{/tcb/vig/west style}
+  such that the paths fade from outside to inside.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \fill [black!20] (-0.5,-0.5) rectangle (1.5,1.5);
+  \path [pattern=checkerboard,pattern color=black!30]
+    (-0.5,-0.5) rectangle (1.5,1.5);
+  \tcbvignette{fade in=blue}
+\end{tikzpicture}
+\end{dispExample*}
+\end{vigTcbKey}
+
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{fade out}{\colOpt{=\marg{style}}}{style, default |white|}
+  Sets the four style options
+  \refKey{/tcb/vig/north style},
+  \refKey{/tcb/vig/south style},
+  \refKey{/tcb/vig/east style}, and
+  \refKey{/tcb/vig/west style}
+  such that the paths fade from inside to outside.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \fill [black!20] (-0.5,-0.5) rectangle (1.5,1.5);
+  \path [pattern=checkerboard,pattern color=black!30]
+    (-0.5,-0.5) rectangle (1.5,1.5);
+  \tcbvignette{fade out=blue}
+\end{tikzpicture}
+\end{dispExample*}
+\end{vigTcbKey}
+
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{semi fade in}{\colOpt{=\marg{style}}}{style, default |white|}
+  Sets the four style options
+  \refKey{/tcb/vig/north style},
+  \refKey{/tcb/vig/south style},
+  \refKey{/tcb/vig/east style}, and
+  \refKey{/tcb/vig/west style}
+  such that the paths fade weak from outside to inside.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \fill [black!20] (-0.5,-0.5) rectangle (1.5,1.5);
+  \path [pattern=checkerboard,pattern color=black!30]
+    (-0.5,-0.5) rectangle (1.5,1.5);
+  \tcbvignette{semi fade in=blue}
+\end{tikzpicture}
+\end{dispExample*}
+\end{vigTcbKey}
+
+
+\begin{vigTcbKey}[][doc new=2016-04-22]{semi fade out}{\colOpt{=\marg{style}}}{style, default |white|}
+  Sets the four style options
+  \refKey{/tcb/vig/north style},
+  \refKey{/tcb/vig/south style},
+  \refKey{/tcb/vig/east style}, and
+  \refKey{/tcb/vig/west style}
+  such that the paths fade weak from inside to outside.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tikzpicture}
+  \fill [black!20] (-0.5,-0.5) rectangle (1.5,1.5);
+  \path [pattern=checkerboard,pattern color=black!30]
+    (-0.5,-0.5) rectangle (1.5,1.5);
+  \tcbvignette{semi fade out=blue}
+\end{tikzpicture}
+\end{dispExample*}
+\end{vigTcbKey}
+
+
+
+
+\clearpage
+\subsection{Vignette as Underlay}\label{subsec:vignetteunderlay}
+
+\begin{docTcbKey}[][doc new=2016-04-22]{underlay vignette}{\colOpt{=\marg{options}}}{style, no default}
+  This puts a \refCom{tcbvignette} with the given \meta{options}
+  as \refKey{/tcb/underlay} to a \refEnv{tcolorbox}.
+  The dimensions of the \emph{vignette} are matched to the dimensions of
+  the \refEnv{tcolorbox}. For example, \refKey{/tcb/leftrule} is used as
+  \refKey{/tcb/vig/west size}. Also, \refKey{/tcb/colframe} is used as
+  \refKey{/tcb/vig/raised color}.
+
+  For a \refKey{/tcb/breakable} tcolorbox, the \emph{vignette} is also
+  been broken.
+  Alternatively, \refCom{tcbvignette} could be used directly inside
+  an \refKey{/tcb/underlay} with appropriate settings.
+
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tcolorbox}[enhanced,size=small,sharp corners,
+  colback=green!10,colframe=green!50!black,
+  boxrule=2mm,titlerule=0mm,
+  title=My title,center title,fonttitle=\bfseries,
+  underlay vignette]
+    This is a tcolorbox.
+\end{tcolorbox}
+\end{dispExample*}
+
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tcolorbox}[enhanced,size=small,arc=0pt,
+  colback=blue!10,colframe=blue,boxrule=2mm,
+  underlay vignette={size=1.5mm}]
+    This is a tcolorbox.
+\end{tcolorbox}
+\end{dispExample*}
+
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tcolorbox}[enhanced,size=small,sharp corners,
+  colframe=red,interior hidden,boxrule=2mm,
+  colupper=white,center upper,fontupper=\bfseries,
+  underlay vignette]
+    This is a tcolorbox.
+\end{tcolorbox}
+\end{dispExample*}
+
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tcolorbox}[enhanced,size=small,sharp corners,
+  colback=red!50!yellow,frame hidden,boxrule=2mm,
+  underlay vignette={color from=red!50!yellow to white,
+     draw method=clipped,size=2.1mm}]
+    This is a tcolorbox.
+\end{tcolorbox}
+\end{dispExample*}
+
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\tcbox[enhanced,sharp corners,colback=red!10,colframe=red]
+  {Test}
+
+\tcbox[enhanced,sharp corners,colback=red!10,colframe=red,
+  underlay vignette]{Test}
+\end{dispExample*}
+
+\end{docTcbKey}
+
+
+\clearpage
+\begin{docTcbKey}[][doc new=2016-04-22]{underlay raised shading vignette}{\colOpt{=\marg{options}}}{style, no default}
+  This is a special style derived from \refKey{/tcb/underlay vignette},
+  where the frame color is shaded to create a soft raised frame impression.
+
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tcolorbox}[enhanced,sharp corners,
+  colback=green!10,
+  colframe=green!50!black,
+  size=small,boxrule=2mm,titlerule=0mm,
+  title=My title,center title,fonttitle=\bfseries,
+  underlay raised shading vignette]
+    This is a tcolorbox.
+\end{tcolorbox}
+\end{dispExample*}
+\end{docTcbKey}
+
+
+
+\begin{docTcbKey}[][doc new=2016-04-22]{underlay raised fading vignette}{\colOpt{=\marg{options}}}{style, no default}
+  This style gives a similar effect as \refKey{/tcb/underlay raised shading vignette},
+  but a path fading is used here. Different optical impression are very
+  previewer-dependent.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tcolorbox}[enhanced,sharp corners,
+  colback=green!10,
+  colframe=green!50!black,
+  size=small,boxrule=2mm,titlerule=0mm,
+  title=My title,center title,fonttitle=\bfseries,
+  underlay raised fading vignette]
+    This is a tcolorbox.
+\end{tcolorbox}
+\end{dispExample*}
+\end{docTcbKey}
+
+\begin{docTcbKey}[][doc new=2016-04-22]{underlay shade in vignette}{\colOpt{=\marg{options}}}{style, no default}
+  This is a special style derived from \refKey{/tcb/underlay vignette},
+  where the frame color is shaded into the interior color.
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tcolorbox}[enhanced,sharp corners,frame hidden,
+  colback=green!10,
+  colframe=green!50!black,
+  size=small,boxrule=2mm,titlerule=0mm,
+  underlay shade in vignette]
+    This is a tcolorbox.
+\end{tcolorbox}
+\end{dispExample*}
+\end{docTcbKey}
+
+
+\clearpage
+\subsection{Vignette as Finish}\label{subsec:vignettefinish}
+
+
+\begin{docTcbKey}[][doc new=2016-04-22]{finish vignette}{\colOpt{=\marg{options}}}{style, no default}
+  This puts a \refCom{tcbvignette} with the given \meta{options}
+  as \refKey{/tcb/finish} to a \refEnv{tcolorbox}.
+  The default style settings create a raised frame impression by
+  drawing black and white color parts with reduced opacity.
+
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tcolorbox}[enhanced,size=small,
+  colback=green!10,colframe=green!50!black,
+  boxrule=0.5mm,titlerule=0mm,
+  title=My title,center title,fonttitle=\bfseries,
+  finish vignette={size=1mm}]
+    This is a tcolorbox.
+\end{tcolorbox}
+\end{dispExample*}
+
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\tcbincludegraphics[blankest,width=3cm,
+  finish vignette={size=3mm}]{pink_marble.png}
+\end{dispExample*}
+\end{docTcbKey}
+
+
+\begin{docTcbKey}[][doc new=2016-04-22]{finish raised fading vignette}{\colOpt{=\marg{options}}}{style, no default}
+  This puts a \refCom{tcbvignette} with the given \meta{options}
+  as \refKey{/tcb/finish} to a \refEnv{tcolorbox}.
+  The default style settings create a soft raised frame impression by
+  drawing fading black and white color parts.
+
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tcolorbox}[enhanced,size=small,
+  colback=green!10,colframe=green!50!black,
+  boxrule=0.5mm,titlerule=0mm,
+  title=My title,center title,fonttitle=\bfseries,
+  finish raised fading vignette={size=1mm}]
+    This is a tcolorbox.
+\end{tcolorbox}
+\end{dispExample*}
+
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\tcbincludegraphics[blankest,width=3cm,
+  finish raised fading vignette={size=3mm}]{pink_marble.png}
+\end{dispExample*}
+
+\end{docTcbKey}
+
+
+\clearpage
+\begin{docTcbKey}[][doc new=2016-04-22]{finish fading vignette}{\colOpt{=\marg{options}}}{style, no default}
+  This puts a \refCom{tcbvignette} with the given \meta{options}
+  as \refKey{/tcb/finish} to a \refEnv{tcolorbox}.
+  The default style settings fade the box into white from inside to outside.
+  Note that \refKey{/tcb/vig/over node} is used here.
+  \refKey{/tcb/vig/over node offset} can be adapted to overlap the box
+  more or less. The fade color can be set using
+  \refKey{/tcb/vig/base color}.
+
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tcolorbox}[enhanced,size=small,
+  colback=green!10,colframe=green!50!black,
+  boxrule=0.5mm,titlerule=0mm,
+  title=My title,center title,fonttitle=\bfseries,
+  finish fading vignette={size=2mm}]
+    This is a tcolorbox.
+\end{tcolorbox}
+\end{dispExample*}
+
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\tcbincludegraphics[blankest,width=3cm,
+  finish fading vignette={size=3mm}]{pink_marble.png}
+\end{dispExample*}
+
+\begin{dispExample*}{sbs,righthand width=3cm,center lower}
+\begin{tcolorbox}[colback=blue!50!black,size=small,
+  title=Example]
+\tcbincludegraphics[blankest,
+  finish fading vignette={base color=blue!50!black,size=3mm,
+    over node offset=0.2mm}]{pink_marble.png}
+\end{tcolorbox}
+\end{dispExample*}
+
+\end{docTcbKey}
+
+
+\begin{dispExample*}{}
+\begin{tcbitemize}[raster columns=3,bicolor,
+  raster equal height,sharp corners,boxrule=2mm,
+  colframe=red,colback=yellow!5,colbacklower=yellow!25!red!20]
+\tcbitem A
+\tcbitem[underlay vignette] B
+\tcbitem[underlay={\tcbvignette{inside node=interior,
+  lowered color=red,size=1mm}}] C
+\tcbitem[underlay vignette,
+  underlay={\tcbvignette{inside node=interior,
+  lowered color=red,size=1mm}}] D
+\tcbitem[boxrule=3mm,underlay vignette={size=2mm},
+  underlay={\tcbvignette{inside node=interior,
+  lowered color=red,size=1mm}}] E
+\tcbitem[underlay raised shading vignette] F
+\tcbitem[underlay raised shading vignette,
+  underlay={\tcbvignette{inside node=interior,
+  lowered color=red,size=1mm}}] G
+\tcbitem[title=H1,underlay={\tcbvignette{inside node=interior,
+  lowered color=red,size=1mm}},finish vignette] H2
+\tcbitem[boxrule=0.25mm,colback=red!30,finish vignette] I1 \tcblower I2
+\tcbitem[tile,colback=red!30,finish raised fading vignette] J1 \tcblower J2
+\tcbitem[boxrule=1mm,underlay={\tcbvignette{inside node=interior,
+  raised color=red,size=1mm}}] K
+\tcbitem[boxrule=1mm,title=L1,underlay={\tcbvignette{inside node=title,
+  lowered color=red,size=0.5mm}}] L2
+\end{tcbitemize}
+\end{dispExample*}
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.pdf b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.pdf
index b0c98874c31..bf0fe95bc50 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.pdf
+++ b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.pdf
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.tex b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.tex
index 74d604ca65d..52e8c18975c 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.tex
+++ b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.tex
@@ -1,5 +1,5 @@
 % \LaTeX-Main\
-%% The LaTeX package tcolorbox - version 3.90 (2016/02/29)
+%% The LaTeX package tcolorbox - version 3.91 (2016/04/27)
 %% tcolorbox.tex: Manual
 %%
 %% -------------------------------------------------------------------------------------------
@@ -29,14 +29,15 @@
 
 \RequirePackage{csquotes}
 \RequirePackage[style=numeric-comp,sorting=nyt,
-  maxnames=8,minnames=8,abbreviate=false,backend=biber]{biblatex}
+  maxnames=8,minnames=8,abbreviate=false,backend=biber,
+  bibencoding=latin1,texencoding=ascii]{biblatex}
 \DeclareFieldFormat{url}{\newline\url{#1}}%
 \DeclareListFormat{language}{}%
 \setlength{\bibitemsep}{\smallskipamount}
 \addbibresource{tcolorbox.doc.bib}
 
-\def\version{3.90}%
-\def\datum{2016/02/29}%
+\def\version{3.91}%
+\def\datum{2016/04/27}%
 \makeindex
 
 \hypersetup{
@@ -48,8 +49,17 @@
 
 \usepackage{pgfplots}
 
+%\nocite{*}
+
+%  intermediate hack to compensate a biblatex error (3.4)
+\makeatletter
+\def\ifempty#1{%
+  \protected@edef\z{#1}%
+  \expandafter\ifblank\expandafter{\z}}
+\makeatother
+
 %\tcbset{draftmode}
-%\includeonly{tcolorbox.doc.skins}
+%\includeonly{tcolorbox.doc.intro}
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \begin{document}
@@ -66,6 +76,7 @@
 \include{tcolorbox.doc.skins}
 \include{tcolorbox.doc.graphics}
 \include{tcolorbox.doc.filling}
+\include{tcolorbox.doc.vignette}
 \include{tcolorbox.doc.raster}
 \include{tcolorbox.doc.listings}
 \include{tcolorbox.doc.theorems}
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbbreakable.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbbreakable.code.tex
index a66a929fae7..3618a0255cd 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbbreakable.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbbreakable.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.90 (2016/02/29)
+%% The LaTeX package tcolorbox - version 3.91 (2016/04/27)
 %% tcbbreakable.code.tex: Code for breakable colorboxes
 %%
 %% -------------------------------------------------------------------------------------------
@@ -17,7 +17,7 @@
 %%
 %% This work consists of all files listed in README
 %%
-\tcb@set@library@version{3.90}
+\tcb@set@library@version{3.91}
 
 \let\tcb@parboxrestore@true=\tcb@parboxrestore
 \let\tcb@parboxrestore@false\tcb@parbox@false@settings
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbdocumentation.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbdocumentation.code.tex
index f813d8ecb14..bd32634d4b7 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbdocumentation.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbdocumentation.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.90 (2016/02/29)
+%% The LaTeX package tcolorbox - version 3.91 (2016/04/27)
 %% tcbdocumentation.code.tex: Code for LaTeX documentations
 %%
 %% -------------------------------------------------------------------------------------------
@@ -17,7 +17,7 @@
 %%
 %% This work consists of all files listed in README
 %%
-\tcb@set@library@version{3.90}
+\tcb@set@library@version{3.91}
 
 \tcbuselibrary{listings,skins,xparse,external}
 
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbexternal.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbexternal.code.tex
index 9f4a67717c8..16100d92048 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbexternal.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbexternal.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.90 (2016/02/29)
+%% The LaTeX package tcolorbox - version 3.91 (2016/04/27)
 %% tcbexternal.code.tex: Code for externalization
 %%
 %% -------------------------------------------------------------------------------------------
@@ -17,7 +17,7 @@
 %%
 %% This work consists of all files listed in README
 %%
-\tcb@set@library@version{3.90}
+\tcb@set@library@version{3.91}
 
 {
 \catcode`\"=12
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbfitting.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbfitting.code.tex
index 14b76fc8a97..fe06d6ca36f 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbfitting.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbfitting.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.90 (2016/02/29)
+%% The LaTeX package tcolorbox - version 3.91 (2016/04/27)
 %% tcbfitting.code.tex: Code for fit boxes
 %%
 %% -------------------------------------------------------------------------------------------
@@ -18,7 +18,7 @@
 %% This work consists of all files listed in README
 %%
 %\makeatletter
-\tcb@set@library@version{3.90}
+\tcb@set@library@version{3.91}
 
 \newdimen\tcbfitdim
 \newdimen\tcb@lowerfitdim
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbhooks.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbhooks.code.tex
index 63e0fb91139..8a0dc9f06ee 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbhooks.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbhooks.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.90 (2016/02/29)
+%% The LaTeX package tcolorbox - version 3.91 (2016/04/27)
 %% tcbhooks.code.tex: Code for adding hooks
 %%
 %% -------------------------------------------------------------------------------------------
@@ -18,7 +18,7 @@
 %% This work consists of all files listed in README
 %%
 %\makeatletter
-\tcb@set@library@version{3.90}
+\tcb@set@library@version{3.91}
 
 \tcbset{%
   before upper app/.code={\appto\kvtcb@before@upper{#1}},%
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcblistings.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcblistings.code.tex
index 5c06ee8db89..90d62d37c35 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcblistings.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcblistings.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.90 (2016/02/29)
+%% The LaTeX package tcolorbox - version 3.91 (2016/04/27)
 %% tcblistings.code.tex: Code for colorboxes with listings
 %%
 %% -------------------------------------------------------------------------------------------
@@ -18,7 +18,7 @@
 %% This work consists of all files listed in README
 %%
 %\makeatletter
-\tcb@set@library@version{3.90}
+\tcb@set@library@version{3.91}
 
 \RequirePackage{listings}[2007/02/22]
 
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcblistingscore.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcblistingscore.code.tex
index e5211fdc781..0263c476cb4 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcblistingscore.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcblistingscore.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.90 (2016/02/29)
+%% The LaTeX package tcolorbox - version 3.91 (2016/04/27)
 %% tcblistingscode.code.tex: Auxiliary code for colorboxes with listings
 %%
 %% -------------------------------------------------------------------------------------------
@@ -18,7 +18,7 @@
 %% This work consists of all files listed in README
 %%
 %\makeatletter
-\tcb@set@library@version{3.90}
+\tcb@set@library@version{3.91}
 
 \RequirePackage{pdftexcmds}
 
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcblistingsutf8.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcblistingsutf8.code.tex
index 9c3bc9dd7b6..7a29fe1cd7c 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcblistingsutf8.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcblistingsutf8.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.90 (2016/02/29)
+%% The LaTeX package tcolorbox - version 3.91 (2016/04/27)
 %% tcblistingsutf8.code.tex: Code for colorboxes with listings in UTF-8
 %%
 %% -------------------------------------------------------------------------------------------
@@ -17,7 +17,7 @@
 %%
 %% This work consists of all files listed in README
 %%
-\tcb@set@library@version{3.90}
+\tcb@set@library@version{3.91}
 
 \RequirePackage{listingsutf8}[2011/11/10]
 \tcbuselibrary{listings}
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbmagazine.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbmagazine.code.tex
index d65b9e769ce..51684b96a8c 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbmagazine.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbmagazine.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.90 (2016/02/29)
+%% The LaTeX package tcolorbox - version 3.91 (2016/04/27)
 %% tcbmagazine.code.tex: Code for box sets and magazine styles
 %%
 %% -------------------------------------------------------------------------------------------
@@ -17,7 +17,7 @@
 %%
 %% This work consists of all files listed in README
 %%
-\tcb@set@library@version{3.90}
+\tcb@set@library@version{3.91}
 
 \tcbuselibrary{breakable}
 
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbminted.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbminted.code.tex
index 16af5e8e9f2..df752c63a0c 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbminted.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbminted.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.90 (2016/02/29)
+%% The LaTeX package tcolorbox - version 3.91 (2016/04/27)
 %% tcbminted.code.tex: Code for colorboxes with listings
 %%
 %% -------------------------------------------------------------------------------------------
@@ -18,7 +18,7 @@
 %% This work consists of all files listed in README
 %%
 %\makeatletter
-\tcb@set@library@version{3.90}
+\tcb@set@library@version{3.91}
 
 \RequirePackage{minted}[2011/09/17]
 
@@ -27,15 +27,14 @@
 \def\tcb@minted@input@listing#1#2#3#4{%
   \edef\temp@a{#4}%
   \ifx\temp@a\@empty%
-  \else
-    %\usemintedstyle{\temp@a}%
+  \else%
     \toks@=\expandafter{#4}%
     \edef\tcb@temp{\noexpand\usemintedstyle{\the\toks@}}%
     \tcb@temp%
   \fi%
   \toks@=\expandafter{#1}%
   \edef\tcb@temp{\noexpand\inputminted[\the\toks@]}%
-  \tcb@temp{#2}{#3}%
+  \tcb@temp{#2}{\minted@outputdir#3}%
 }
 
 \def\tcb@minted@uselistinglisting{%
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbraster.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbraster.code.tex
index 7d2269d3519..8d29897a05e 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbraster.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbraster.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.90 (2016/02/29)
+%% The LaTeX package tcolorbox - version 3.91 (2016/04/27)
 %% tcbskinsjigsaw.code.tex: Code for colorboxes with different skins
 %%
 %% -------------------------------------------------------------------------------------------
@@ -17,7 +17,7 @@
 %%
 %% This work consists of all files listed in README
 %%
-\tcb@set@library@version{3.90}
+\tcb@set@library@version{3.91}
 
 \newcounter{tcbrastercolumn}
 \newcounter{tcbrasterrow}
@@ -228,3 +228,7 @@
 \newenvironment{tcboxedraster}[2][]{%
   \tcolorbox[#2]\tcbraster[#1]}%
   {\endtcbraster\endtcolorbox}
+
+\newenvironment{tcboxeditemize}[2][]{%
+  \tcolorbox[#2]\tcbitemize[#1]}%
+  {\endtcbitemize\endtcolorbox}
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbskins.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbskins.code.tex
index 9bc4926d41d..ea9958de51c 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbskins.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbskins.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.90 (2016/02/29)
+%% The LaTeX package tcolorbox - version 3.91 (2016/04/27)
 %% tcbskins.code.tex: Code for colorboxes with different skins
 %%
 %% -------------------------------------------------------------------------------------------
@@ -17,7 +17,7 @@
 %%
 %% This work consists of all files listed in README
 %%
-\tcb@set@library@version{3.90}
+\tcb@set@library@version{3.91}
 
 \RequirePackage{tikz}[2010/10/13]
 
@@ -175,7 +175,7 @@
 }
 
 \def\tcb@draw@pseudo@segmentation#1{%
-\begingroup\tcb@shield@externalize\begin{tikzpicture}%
+\begingroup\tcb@shield@externalize\noindent\begin{tikzpicture}%
   \path[use as bounding box] (0,{\the\dimexpr-\kvtcb@middle-\kvtcb@boxsep\relax})
      rectangle (\linewidth,{\the\dimexpr\kvtcb@middle+\kvtcb@boxsep\relax});
   \node[line width=0mm,inner sep=0mm,draw=none,fill=none,rectangle,
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbskinsjigsaw.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbskinsjigsaw.code.tex
index 6325257bebd..a790ddc43d9 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbskinsjigsaw.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbskinsjigsaw.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.90 (2016/02/29)
+%% The LaTeX package tcolorbox - version 3.91 (2016/04/27)
 %% tcbskinsjigsaw.code.tex: Code for colorboxes with different skins
 %%
 %% -------------------------------------------------------------------------------------------
@@ -17,7 +17,7 @@
 %%
 %% This work consists of all files listed in README
 %%
-\tcb@set@library@version{3.90}
+\tcb@set@library@version{3.91}
 
 \tcbuselibrary{skins}
 
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbtheorems.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbtheorems.code.tex
index e01802d9c7b..d1fb74a6faf 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbtheorems.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbtheorems.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.90 (2016/02/29)
+%% The LaTeX package tcolorbox - version 3.91 (2016/04/27)
 %% tcbtheorems.code.tex: Code for theorems in colorboxes
 %%
 %% -------------------------------------------------------------------------------------------
@@ -18,7 +18,7 @@
 %% This work consists of all files listed in README
 %%
 %\makeatletter
-\tcb@set@library@version{3.90}
+\tcb@set@library@version{3.91}
 
 \RequirePackage{amsmath}
 
@@ -51,7 +51,7 @@
   \def\temp@a{#2}%
   \ifx\temp@a\@empty%
   \else%
-    \tcbset{label={#1:#2}}%
+    \tcbset{label={#1\kvtcb@label@sep#2}}%
   \fi%
 }
 
@@ -104,6 +104,7 @@
   terminator sign colon/.style={terminator sign={:}},%
   terminator sign dash/.style={terminator sign={\ --}},%
   terminator sign none/.style={terminator sign=},%
+  label separator/.store in=\kvtcb@label@sep,%
   description delimiters/.code 2 args={\def\kvtcb@desc@delim@left{#1}\def\kvtcb@desc@delim@right{#2}},%
   description delimiters parenthesis/.style={description delimiters=()},
   description delimiters none/.style={description delimiters={}{}},
@@ -152,7 +153,7 @@
   \new@tcbtheorem}
 
 \newcommand{\tcbmaketheorem}[5]{%
-  \newtcolorbox{#1}[3][]{#3,theorem={#2}{#4}{##2}{#5:##3},##1}%
+  \newtcolorbox{#1}[3][]{#3,theorem={#2}{#4}{##2}{#5\kvtcb@label@sep##3},##1}%
 }
 
 \newtcbox{\tcboxmath}[1][]{nobeforeafter,math upper,tcbox raise base,#1}
@@ -162,7 +163,7 @@
   reset@theorems/.style={%
     description formatter,description color,description font,
     highlight math style={colframe=red,colback=yellow!25!white},%
-    theorem style=standard,%
+    theorem style=standard,label separator=:,%
   },
   initialize@reset=reset@theorems,
 }
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbvignette.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbvignette.code.tex
new file mode 100644
index 00000000000..18b92028d32
--- /dev/null
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbvignette.code.tex
@@ -0,0 +1,313 @@
+%% The LaTeX package tcolorbox - version 3.91 (2016/04/27)
+%% tcbvignette.code.tex: Code for ornamental frames
+%%
+%% -------------------------------------------------------------------------------------------
+%% Copyright (c) 2006-2016 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
+%% -------------------------------------------------------------------------------------------
+%%
+%% This work may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%   http://www.latex-project.org/lppl.txt
+%% and version 1.3 or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%%
+%% This work has the LPPL maintenance status `author-maintained'.
+%%
+%% This work consists of all files listed in README
+%%
+\tcb@set@library@version{3.91}
+
+\tcbuselibrary{skins}
+
+\usetikzlibrary{fadings}
+
+\pgfdeclarehorizontalshading{tcb@fade@east}{100bp}
+{color(0bp)=(pgftransparent!50); color(25bp)=(pgftransparent!50);
+ color(75bp)=(pgftransparent!100); color(100bp)=(pgftransparent!100)}
+
+\pgfdeclarehorizontalshading{tcb@fade@west}{100bp}
+{color(0bp)=(pgftransparent!100); color(25bp)=(pgftransparent!100);
+ color(75bp)=(pgftransparent!50); color(100bp)=(pgftransparent!50)}
+
+\pgfdeclareverticalshading{tcb@fade@north}{100bp}
+{color(0bp)=(pgftransparent!50); color(25bp)=(pgftransparent!50);
+ color(75bp)=(pgftransparent!100); color(100bp)=(pgftransparent!100)}
+
+\pgfdeclareverticalshading{tcb@fade@south}{100bp}
+{color(0bp)=(pgftransparent!100); color(25bp)=(pgftransparent!100);
+ color(75bp)=(pgftransparent!50); color(100bp)=(pgftransparent!50)}
+
+\pgfdeclarefading{semi east}{\pgfuseshading{tcb@fade@east}}
+\pgfdeclarefading{semi west}{\pgfuseshading{tcb@fade@west}}
+\pgfdeclarefading{semi north}{\pgfuseshading{tcb@fade@north}}
+\pgfdeclarefading{semi south}{\pgfuseshading{tcb@fade@south}}
+
+\def\tcb@vig@draw@north#1{\path[#1]\pgfextra{%
+  \pgfpathmoveto{\pgfqpoint{\tcb@vig@xA}{\tcb@vig@yB}}%
+  \pgfpathlineto{\pgfqpoint{\tcb@vig@xB}{\tcb@vig@yB}}%
+  \pgfpathlineto{\pgfqpoint{\tcb@vig@xb}{\tcb@vig@yb}}%
+  \pgfpathlineto{\pgfqpoint{\tcb@vig@xa}{\tcb@vig@yb}}%
+  \pgfpathclose};}
+
+\def\tcb@vig@draw@east#1{\path[#1]\pgfextra{%
+  \pgfpathmoveto{\pgfqpoint{\tcb@vig@xB}{\tcb@vig@yB}}%
+  \pgfpathlineto{\pgfqpoint{\tcb@vig@xB}{\tcb@vig@yA}}%
+  \pgfpathlineto{\pgfqpoint{\tcb@vig@xb}{\tcb@vig@ya}}%
+  \pgfpathlineto{\pgfqpoint{\tcb@vig@xb}{\tcb@vig@yb}}%
+  \pgfpathclose};}
+
+\def\tcb@vig@draw@south#1{\path[#1]\pgfextra{%
+  \pgfpathmoveto{\pgfqpoint{\tcb@vig@xB}{\tcb@vig@yA}}%
+  \pgfpathlineto{\pgfqpoint{\tcb@vig@xA}{\tcb@vig@yA}}%
+  \pgfpathlineto{\pgfqpoint{\tcb@vig@xa}{\tcb@vig@ya}}%
+  \pgfpathlineto{\pgfqpoint{\tcb@vig@xb}{\tcb@vig@ya}}%
+  \pgfpathclose};}
+
+\def\tcb@vig@draw@west#1{\path[#1]\pgfextra{%
+  \pgfpathmoveto{\pgfqpoint{\tcb@vig@xA}{\tcb@vig@yA}}%
+  \pgfpathlineto{\pgfqpoint{\tcb@vig@xA}{\tcb@vig@yB}}%
+  \pgfpathlineto{\pgfqpoint{\tcb@vig@xa}{\tcb@vig@yb}}%
+  \pgfpathlineto{\pgfqpoint{\tcb@vig@xa}{\tcb@vig@ya}}%
+  \pgfpathclose};}
+
+\def\tcb@vig@draw@direct{%
+  \ifdim\tcb@vig@yB>\tcb@vig@yb\relax%
+    \begingroup\edef\x{\endgroup\noexpand\tcb@vig@draw@north{fill,draw=none,\expandonce\tcb@vig@style@north}}\x%
+  \fi%
+  \ifdim\tcb@vig@xB>\tcb@vig@xb\relax%
+    \begingroup\edef\x{\endgroup\noexpand\tcb@vig@draw@east{fill,draw=none,\expandonce\tcb@vig@style@east}}\x%
+  \fi%
+  \ifdim\tcb@vig@yA<\tcb@vig@ya\relax%
+    \begingroup\edef\x{\endgroup\noexpand\tcb@vig@draw@south{fill,draw=none,\expandonce\tcb@vig@style@south}}\x%
+  \fi%
+  \ifdim\tcb@vig@xA<\tcb@vig@xa\relax%
+    \begingroup\edef\x{\endgroup\noexpand\tcb@vig@draw@west{fill,draw=none,\expandonce\tcb@vig@style@west}}\x%
+  \fi%
+}
+
+\def\tcb@vig@draw@clipped{%
+  \ifdim\tcb@vig@yB>\tcb@vig@yb\relax%
+    \begin{scope}
+    \tcb@vig@draw@north{clip}%
+    \begingroup\edef\x{\endgroup\noexpand\path[fill,\expandonce\tcb@vig@style@north]}%
+    \x\pgfextra{\pgfpathrectanglecorners{\pgfpoint{\tcb@vig@xA-1mm}{\tcb@vig@yb}}%
+        {\pgfpoint{\tcb@vig@xB+1mm}{\tcb@vig@yB}}};
+    \end{scope}
+  \fi%
+  \ifdim\tcb@vig@xB>\tcb@vig@xb\relax%
+    \begin{scope}
+    \tcb@vig@draw@east{clip}%
+    \begingroup\edef\x{\endgroup\noexpand\path[fill,\expandonce\tcb@vig@style@east]}%
+    \x\pgfextra{\pgfpathrectanglecorners{\pgfpoint{\tcb@vig@xb}{\tcb@vig@yA-1mm}}%
+          {\pgfpoint{\tcb@vig@xB}{\tcb@vig@yB+1mm}}};
+    \end{scope}
+  \fi%
+  \ifdim\tcb@vig@yA<\tcb@vig@ya\relax%
+    \begin{scope}
+    \tcb@vig@draw@south{clip}%
+    \begingroup\edef\x{\endgroup\noexpand\path[fill,\expandonce\tcb@vig@style@south]}%
+    \x\pgfextra{\pgfpathrectanglecorners{\pgfpoint{\tcb@vig@xA-1mm}{\tcb@vig@yA}}%
+        {\pgfpoint{\tcb@vig@xB+1mm}{\tcb@vig@ya}}};
+    \end{scope}
+  \fi%
+  \ifdim\tcb@vig@xA<\tcb@vig@xa\relax%
+    \begin{scope}
+    \tcb@vig@draw@west{clip}%
+    \begingroup\edef\x{\endgroup\noexpand\path[fill,\expandonce\tcb@vig@style@west]}%
+    \x\pgfextra{%
+      \pgfpathrectanglecorners{\pgfpoint{\tcb@vig@xA}{\tcb@vig@yA-1mm}}%
+        {\pgfpoint{\tcb@vig@xa}{\tcb@vig@yB+1mm}}};
+    \end{scope}
+  \fi%
+}
+
+\newcommand{\tcbvignette}[1]{%
+  \ifdefined\pgfpictureid%
+    \tcbset{vig/.cd,#1}%
+    \tcbdimto\tcb@vig@xA{\tcb@vig@xmin}%
+    \tcbdimto\tcb@vig@xB{\tcb@vig@xmax}%
+    \tcbdimto\tcb@vig@yA{\tcb@vig@ymin}%
+    \tcbdimto\tcb@vig@yB{\tcb@vig@ymax}%
+    \tcbdimto\tcb@vig@xa{\tcb@vig@xA+\tcb@vig@size@west}%
+    \tcbdimto\tcb@vig@xb{\tcb@vig@xB-(\tcb@vig@size@east)}%
+    \tcbdimto\tcb@vig@ya{\tcb@vig@yA+\tcb@vig@size@south}%
+    \tcbdimto\tcb@vig@yb{\tcb@vig@yB-(\tcb@vig@size@north)}%
+    \tcb@vig@draw%
+  \else%
+    \tcb@warning{'tcbvignette' was found outside a 'tikzpicture' environment and is ignored}%
+  \fi%
+}
+
+\tcbset{%
+  vig/.cd,
+  xmin/.store in=\tcb@vig@xmin,
+  xmax/.store in=\tcb@vig@xmax,
+  ymin/.store in=\tcb@vig@ymin,
+  ymax/.store in=\tcb@vig@ymax,
+  lower left corner/.code={\tcb@gettikzxy{(#1)}{\tcb@vig@xmin}{\tcb@vig@ymin}},
+  upper right corner/.code={\tcb@gettikzxy{(#1)}{\tcb@vig@xmax}{\tcb@vig@ymax}},
+  %
+  inside node/.style={lower left corner={#1.south west},upper right corner={#1.north east}},
+  outside node/.style={lower left corner={[xshift=-\tcb@vig@size@west,yshift=-\tcb@vig@size@south]#1.south west},
+    upper right corner={[xshift=\tcb@vig@size@east,yshift=\tcb@vig@size@north]#1.north east}},
+  %
+  on node/.style={lower left corner={#1.south west},upper right corner={#1.north east}},
+  over node offset/.store in=\tcb@vig@onoffset,%
+  over node/.style={lower left corner={[xshift=-\tcb@vig@onoffset,yshift=-\tcb@vig@onoffset]#1.south west},
+    upper right corner={[xshift=\tcb@vig@onoffset,yshift=\tcb@vig@onoffset]#1.north east}},
+  north size/.store in=\tcb@vig@size@north,
+  south size/.store in=\tcb@vig@size@south,
+  east size/.store in=\tcb@vig@size@east,
+  west size/.store in=\tcb@vig@size@west,
+  vertical size/.style={north size=#1,south size=#1},
+  horizontal size/.style={east size=#1,west size=#1},
+  size/.style={north size=#1,south size=#1,east size=#1,west size=#1},
+  north style/.store in=\tcb@vig@style@north,
+  south style/.store in=\tcb@vig@style@south,
+  east style/.store in=\tcb@vig@style@east,
+  west style/.store in=\tcb@vig@style@west,
+  draw method/.is choice,
+  draw method/direct/.code={\let\tcb@vig@draw\tcb@vig@draw@direct},%
+  draw method/clipped/.code={\let\tcb@vig@draw\tcb@vig@draw@clipped},%
+  base color/.colorlet=tcbcol@vig@base,
+  raised color/.style={%
+    base color=#1,
+    north style={tcbcol@vig@base!50!white},
+    east style={tcbcol@vig@base!75!black},
+    south style={tcbcol@vig@base!50!black},
+    west style={tcbcol@vig@base!75!white},
+  },
+  lowered color/.style={%
+    base color=#1,
+    north style={tcbcol@vig@base!50!black},
+    east style={tcbcol@vig@base!75!white},
+    south style={tcbcol@vig@base!50!white},
+    west style={tcbcol@vig@base!75!black},
+  },
+  color from/.style args={#1 to #2}{%
+    north style={bottom color=#1,top color=#2},
+    east style={left color=#1,right color=#2},
+    south style={top color=#1,bottom color=#2},
+    west style={right color=#1,left color=#2},
+  },
+  fade in/.style={%
+    north style={#1,path fading=south},
+    east style={#1,path fading=west},
+    south style={#1,path fading=north},
+    west style={#1,path fading=east},
+  },
+  fade in/.default=white,
+  fade out/.style={%
+    north style={#1,path fading=north},
+    east style={#1,path fading=east},
+    south style={#1,path fading=south},
+    west style={#1,path fading=west},
+  },
+  fade out/.default=white,
+  semi fade in/.style={%
+    north style={#1,path fading=semi south},
+    east style={#1,path fading=semi west},
+    south style={#1,path fading=semi north},
+    west style={#1,path fading=semi east},
+  },
+  semi fade in/.default=white,
+  semi fade out/.style={%
+    north style={#1,path fading=semi north},
+    east style={#1,path fading=semi east},
+    south style={#1,path fading=semi south},
+    west style={#1,path fading=semi west},
+  },
+  semi fade out/.default=white,
+  %
+  draw method=direct,
+  xmin=0pt,
+  xmax=1cm,
+  ymin=0pt,
+  ymax=1cm,
+  size=2mm,
+  over node offset=0.1mm,
+  raised color=red,
+}
+
+\tcbset{%
+  finish@vignette/.style 2 args={finish #1={%
+    \begin{tcbclipframe}\tcbvignette{%
+      north style={white,opacity=0.25},
+      east style={black!75,opacity=0.25},
+      south style={black,opacity=0.25},
+      west style={black!25,opacity=0.25},#2,inside node=frame
+      }\end{tcbclipframe}}},
+  finish vignette/.style={%
+    finish@vignette={unbroken}{#1},%
+    finish@vignette={first}{#1,south size=0pt},%
+    finish@vignette={middle}{#1,north size=0pt,south size=0pt},%
+    finish@vignette={last}{#1,north size=0pt}%
+  },
+%
+  finish@raised@vignette/.style 2 args={finish #1={%
+    \begin{tcbclipframe}\tcbvignette{%
+      draw method=clipped,
+      north style={white,path fading=semi south},
+      east style={black!75,path fading=semi west},
+      south style={black,path fading=semi north},
+      west style={black!25,path fading=semi east},#2,inside node=frame
+      }\end{tcbclipframe}}},
+  finish raised fading vignette/.style={%
+    finish@raised@vignette={unbroken}{#1},%
+    finish@raised@vignette={first}{#1,south size=0pt},%
+    finish@raised@vignette={middle}{#1,north size=0pt,south size=0pt},%
+    finish@raised@vignette={last}{#1,north size=0pt}%
+  },
+%
+  finish@fading@vignette/.style 2 args={finish #1={%
+    \tcbvignette{%
+      draw method=clipped,fade in=tcbcol@vig@base,#2,over node=frame}}},
+  finish fading vignette/.style={%
+    finish@fading@vignette={unbroken}{base color=white,#1},%
+    finish@fading@vignette={first}{base color=white,#1,south size=0pt},%
+    finish@fading@vignette={middle}{base color=white,#1,north size=0pt,south size=0pt},%
+    finish@fading@vignette={last}{base color=white,#1,north size=0pt}%
+  },
+%
+  underlay@vignette/.style 2 args={underlay #1={%
+    \begin{tcbclipframe}\tcbvignette{%
+      raised color=tcbcol@frame,
+      north size=\kvtcb@top@rule@stand,
+      south size=\kvtcb@bottom@rule@stand,
+      west size=\kvtcb@left@rule,
+      east size=\kvtcb@right@rule,#2,inside node=frame
+      }\end{tcbclipframe}}},
+  underlay vignette/.style={%
+    underlay@vignette={unbroken}{#1},%
+    underlay@vignette={first}{#1,south size=0pt},%
+    underlay@vignette={middle}{#1,north size=0pt,south size=0pt},%
+    underlay@vignette={last}{#1,north size=0pt}%
+  },
+%
+  underlay@fading@vignette/.style 2 args={underlay #1={%
+    \begin{tcbclipframe}\tcbvignette{%
+      draw method=clipped,
+      north style={white,path fading=semi south},
+      east style={black!75,path fading=semi west},
+      south style={black,path fading=semi north},
+      west style={black!25,path fading=semi east},#2,inside node=frame,
+      }\end{tcbclipframe}}},
+  underlay raised fading vignette/.style={%
+    underlay@fading@vignette={unbroken}{#1},%
+    underlay@fading@vignette={first}{#1,south size=0pt},%
+    underlay@fading@vignette={middle}{#1,north size=0pt,south size=0pt},%
+    underlay@fading@vignette={last}{#1,north size=0pt}%
+  },
+  %
+  underlay raised shading vignette/.style={%
+    underlay vignette={draw method=clipped,
+      north style={bottom color=tcbcol@frame,top color=tcbcol@frame!33!white},
+      east style={left color=tcbcol@frame,right color=tcbcol@frame!66!black},
+      south style={top color=tcbcol@frame,bottom color=tcbcol@frame!33!black},
+      west style={right color=tcbcol@frame,left color=tcbcol@frame!66!white},#1}},
+  %
+  underlay shade in vignette/.style={%
+    underlay vignette={draw method=clipped,color from=tcbcol@back to tcbcol@frame,#1}},
+}
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbxparse.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbxparse.code.tex
index 63d673d955f..9f96afdaeb0 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbxparse.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbxparse.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.90 (2016/02/29)
+%% The LaTeX package tcolorbox - version 3.91 (2016/04/27)
 %% tcbxparse.code.tex: Code for xparse features
 %%
 %% -------------------------------------------------------------------------------------------
@@ -18,7 +18,7 @@
 %% This work consists of all files listed in README
 %%
 %\makeatletter
-\tcb@set@library@version{3.90}
+\tcb@set@library@version{3.91}
 
 \RequirePackage{xparse}[2013/12/31]
 
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcolorbox.sty b/Master/texmf-dist/tex/latex/tcolorbox/tcolorbox.sty
index 6bfd79d8556..e8e5424fba0 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcolorbox.sty
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcolorbox.sty
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.90 (2016/02/29)
+%% The LaTeX package tcolorbox - version 3.91 (2016/04/27)
 %% tcolorbox.sty: Text color boxes
 %%
 %% -------------------------------------------------------------------------------------------
@@ -18,8 +18,8 @@
 %% This work consists of all files listed in README
 %%
 \NeedsTeXFormat{LaTeX2e}
-\ProvidesPackage{tcolorbox}[2016/02/29 version 3.90 text color boxes]
-\def\tcb@version{3.90}
+\ProvidesPackage{tcolorbox}[2016/04/27 version 3.91 text color boxes]
+\def\tcb@version{3.91}
 
 \RequirePackage{pgf}[2008/01/15]
 \RequirePackage{verbatim}[2003/08/22]
@@ -296,11 +296,8 @@
   upperbox/invisible/.code={\tcb@uppervisiblefalse},
   visible/.style={upperbox=visible,lowerbox=visible},
   invisible/.style={upperbox=invisible,lowerbox=invisible},
-%  natural height/.code={\tcb@fixedheightfalse\let\tcb@ch=\tcb@ch@natural\let\tcb@height@adjust\@empty},
   natural height/.code={\tcb@fixedheightfalse\tcb@@ch@@operation{\tcb@ch@natural}},
-%  height/.code={\tcb@fixedheighttrue\tcb@dim@to\kvtcb@height@fixed{#1}\let\tcb@ch=\tcb@ch@fixed\let\tcb@height@adjust\@empty},
   height/.code={\tcb@fixedheighttrue\tcb@dim@to\kvtcb@height@fixed{#1}\tcb@@ch@@operation{\tcb@ch@fixed}},
-%  text height/.code={\tcb@fixedheighttrue\tcb@dim@to\kvtcb@height@fixed{#1}\let\tcb@ch=\tcb@ch@innerfixed\let\tcb@height@adjust\@empty},
   text height/.code={\tcb@fixedheighttrue\tcb@dim@to\kvtcb@height@fixed{#1}\tcb@@ch@@operation{\tcb@ch@innerfixed}},
   add to height/.code={\iftcb@fixedheight\tcbdimto\kvtcb@height@fixed{\kvtcb@height@fixed+(#1)}\fi},
   add to natural height/.code={\tcb@fixedheightfalse\def\kvtcb@height@natural@plus{#1}\tcb@@ch@@operation{\tcb@ch@natural@plus}},
@@ -309,9 +306,10 @@
   height fill/.is choice,%
   height fill/false/.code={\let\tcb@height@adjust\@empty},%
   square/.style={height=\kvtcb@width},
-%  equal height group/.code={\edef\tcb@ehgid{#1}\let\tcb@ch=\tcb@ch@equalheight\let\tcb@height@adjust\@empty},
   equal height group/.code={\tcb@fixedheightfalse\edef\tcb@ehgid{#1}\tcb@@ch@@operation{\tcb@ch@equalheight}},
-  minimum for equal height group/.code args={#1:#2}{\edef\tcb@ehgid{#1}\tcb@ehgadd{#2}},
+  minimum for equal height group/.code args={#1:#2}{\bgroup\edef\tcb@ehgid{#1}\tcbdimto\tcb@min@ehg{#2}\tcb@ehgadd{\tcb@min@ehg}\egroup},
+  minimum for current equal height group/.code={\ifcsundef{tcb@ehgid}{}{%
+    \tcbset{minimum for equal height group=\tcb@ehgid:#1}}},
   use height from group/.code={\ifcsundef{tcb@ehg@height@#1}{}{\tcbset{height=\csuse{tcb@ehg@height@#1}}}},
   use height from group/.default={\csuse{tcb@ehgid}},
   space/.code={\def\tcb@height@fraction{#1}%
@@ -521,7 +519,6 @@
   varwidth upper/.default=\kvtcb@width,
   text fill/.style={before upper={%
     \ifdim\dimexpr\tcbtextheight>0pt\relax%
-    %\iftcb@fixedheight%
       \edef\tcb@temp{\noexpand\minipage[c][\tcbtextheight]}%
     \else%
       \let\tcb@temp\minipage%
@@ -1033,7 +1030,6 @@
 }
 
 \def\tcb@ch@fixed@space{%
-  %\tcbdimto\tcb@height@space{\tcb@height-\tcb@natheight}%
   \tcbdimto\tcb@height@spaceupper{\tcb@height@fraction\dimexpr\tcbheightspace\relax}%
   \tcbdimto\tcb@height@upper{\ht\tcb@upperbox+\dp\tcb@upperbox+\tcb@height@spaceupper}%
   \tcbdimto\tcb@height@lower{\ht\tcb@lowerbox+\dp\tcb@lowerbox+\tcbheightspace-\tcb@height@spaceupper}%
@@ -1044,7 +1040,6 @@
 }
 
 \def\tcb@ch@fixed@spacesave{%
-  %\tcbdimto\tcb@height@space{\tcb@height-\tcb@natheight}%
   \tcbdimto\tcb@space{\tcb@space+\tcbheightspace}%
   \ifdim\dimexpr\tcb@space<0pt\relax
     \let\tcb@space\tcb@zpt%
@@ -1062,7 +1057,6 @@
 }
 
 \def\tcb@ch@fixed@split{%
-%  \tcbdimto\tcb@height@space{\tcb@height-\tcb@natheight+\ht\tcb@upperbox+\dp\tcb@upperbox+\ht\tcb@lowerbox+\dp\tcb@lowerbox}%
   \tcbdimto\tcb@height@space{\tcbheightspace+\ht\tcb@upperbox+\dp\tcb@upperbox+\ht\tcb@lowerbox+\dp\tcb@lowerbox}%
   \tcbdimto\tcb@height@upper{\tcb@height@fraction\dimexpr\tcb@height@space\relax}%
   \tcbdimto\tcb@height@lower{\tcb@height@space-\tcb@height@upper}%
@@ -1108,8 +1102,7 @@
     \fi%
   }{%
     \csxdef{tcb@ehg@current@\tcb@ehgid}{#1}%
-    \edef\tcb@temp{\noexpand\AtEndDocument{\noexpand\tcb@saveehg{\tcb@ehgid}}}%
-    \tcb@temp%
+    \begingroup\edef\x{\endgroup\noexpand\AtEndDocument{\noexpand\tcb@saveehg{\tcb@ehgid}}}\x%
   }%
 }
 
@@ -2088,10 +2081,11 @@
 \tcb@add@library{fitting}{tcbfitting.code.tex}
 \tcb@add@library{xparse}{tcbxparse.code.tex}
 \tcb@add@library{external}{tcbexternal.code.tex}
+\tcb@add@library{vignette}{tcbvignette.code.tex}
 
 \tcb@add@library@style{many}{raster,skins,breakable,hooks,theorems,fitting,xparse}
-\tcb@add@library@style{most}{many,listingsutf8,external,magazine}
-\tcb@add@library@style{all}{many,minted,listingsutf8,external,magazine,documentation}
+\tcb@add@library@style{most}{many,listingsutf8,external,magazine,vignette}
+\tcb@add@library@style{all}{many,minted,listingsutf8,external,magazine,vignette,documentation}
 
 \ProcessOptions*
 \begingroup\edef\x{\endgroup\noexpand\tcbuselibrary{\tcb@optionlist}}\x