tcolorbox (22mar18)

git-svn-id: svn://tug.org/texlive/trunk@47079 c570f23f-e606-0410-a88d-b1316a301751

19 files changed, 79 insertions, 49 deletions

diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbbreakable.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbbreakable.code.tex
index c6129c12dee..7f43f3df097 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 4.12 (2018/01/12)
+%% The LaTeX package tcolorbox - version 4.13 (2018/03/22)
 %% tcbbreakable.code.tex: Code for breakable colorboxes
 %%
 %% -------------------------------------------------------------------------------------------
@@ -17,7 +17,7 @@
 %%
 %% This work consists of all files listed in README
 %%
-\tcb@set@library@version{4.12}
+\tcb@set@library@version{4.13}
 
 \let\tcb@parboxrestore@true=\tcb@parboxrestore
 \let\tcb@parboxrestore@false\tcb@parbox@false@settings
@@ -579,6 +579,7 @@
           \fi%
         \else%
           \ifdim\dimexpr\tcb@h@upper=0pt\relax%
+            \tcb@warning{Discard zero height first box part due to break problems (possible loss of zero height content)}%
             \tcb@split@break@to@start%
           \else%
             \tcb@sdraw@U%
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbdocumentation.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbdocumentation.code.tex
index 27a807d9159..c724b871150 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 4.12 (2018/01/12)
+%% The LaTeX package tcolorbox - version 4.13 (2018/03/22)
 %% tcbdocumentation.code.tex: Code for LaTeX documentations
 %%
 %% -------------------------------------------------------------------------------------------
@@ -17,7 +17,7 @@
 %%
 %% This work consists of all files listed in README
 %%
-\tcb@set@library@version{4.12}
+\tcb@set@library@version{4.13}
 
 \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 9fd9b69ff83..fbef0b4c908 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 4.12 (2018/01/12)
+%% The LaTeX package tcolorbox - version 4.13 (2018/03/22)
 %% tcbexternal.code.tex: Code for externalization
 %%
 %% -------------------------------------------------------------------------------------------
@@ -17,7 +17,7 @@
 %%
 %% This work consists of all files listed in README
 %%
-\tcb@set@library@version{4.12}
+\tcb@set@library@version{4.13}
 
 \tcbuselibrary{pro@cessing}
 
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbfitting.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbfitting.code.tex
index 1f4e21906de..f17843d9654 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 4.12 (2018/01/12)
+%% The LaTeX package tcolorbox - version 4.13 (2018/03/22)
 %% 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{4.12}
+\tcb@set@library@version{4.13}
 
 \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 15411be5749..67e01d333fc 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 4.12 (2018/01/12)
+%% The LaTeX package tcolorbox - version 4.13 (2018/03/22)
 %% 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{4.12}
+\tcb@set@library@version{4.13}
 
 \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 0ce01409a8e..7791d9638fc 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 4.12 (2018/01/12)
+%% The LaTeX package tcolorbox - version 4.13 (2018/03/22)
 %% 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{4.12}
+\tcb@set@library@version{4.13}
 
 \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 7119462ba9e..b4fe8d17cd4 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 4.12 (2018/01/12)
+%% The LaTeX package tcolorbox - version 4.13 (2018/03/22)
 %% 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{4.12}
+\tcb@set@library@version{4.13}
 
 \tcbuselibrary{pro@cessing}
 
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcblistingsutf8.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcblistingsutf8.code.tex
index 58fe13d458c..44d19c95777 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 4.12 (2018/01/12)
+%% The LaTeX package tcolorbox - version 4.13 (2018/03/22)
 %% 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{4.12}
+\tcb@set@library@version{4.13}
 
 \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 160f5e7b6c2..dad68e4287a 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 4.12 (2018/01/12)
+%% The LaTeX package tcolorbox - version 4.13 (2018/03/22)
 %% 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{4.12}
+\tcb@set@library@version{4.13}
 
 \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 0fb6ec8d9c7..c8d512dfa2b 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 4.12 (2018/01/12)
+%% The LaTeX package tcolorbox - version 4.13 (2018/03/22)
 %% 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{4.12}
+\tcb@set@library@version{4.13}
 
 \RequirePackage{minted}[2011/09/17]
 
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbposter.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbposter.code.tex
index 0b43615daf6..ae47d8665cb 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbposter.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbposter.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 4.12 (2018/01/12)
+%% The LaTeX package tcolorbox - version 4.13 (2018/03/22)
 %% tcbposter.code.tex: Code for posters
 %%
 %% -------------------------------------------------------------------------------------------
@@ -17,7 +17,7 @@
 %%
 %% This work consists of all files listed in README
 %%
-\tcb@set@library@version{4.12}
+\tcb@set@library@version{4.13}
 
 \tcbuselibrary{breakable,magazine,skins,fitting}
 
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbprocessing.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbprocessing.code.tex
index bda9545effb..6bb8a1c73da 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbprocessing.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbprocessing.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 4.12 (2018/01/12)
+%% The LaTeX package tcolorbox - version 4.13 (2018/03/22)
 %% tcbprocessing.code.tex: Code for conditional processing
 %%
 %% -------------------------------------------------------------------------------------------
@@ -17,7 +17,7 @@
 %%
 %% This work consists of all files listed in README
 %%
-\tcb@set@library@version{4.12}
+\tcb@set@library@version{4.13}
 
 \RequirePackage{pdftexcmds}
 \RequirePackage{shellesc}
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbraster.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbraster.code.tex
index 74a16baa0b5..2da431c59de 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 4.12 (2018/01/12)
+%% The LaTeX package tcolorbox - version 4.13 (2018/03/22)
 %% 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{4.12}
+\tcb@set@library@version{4.13}
 
 \newcounter{tcbrastercolumn}
 \newcounter{tcbrasterrow}
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbskins.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbskins.code.tex
index 90119646a62..d71b330609f 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 4.12 (2018/01/12)
+%% The LaTeX package tcolorbox - version 4.13 (2018/03/22)
 %% 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{4.12}
+\tcb@set@library@version{4.13}
 
 \RequirePackage{tikz}[2010/10/13]
 
@@ -1218,7 +1218,9 @@
 \def\tcb@ppbb@textbox#1{\pgftext[x=\the\dimexpr\pgf@xa+\tcb@ppbb@width/2\relax,y=\pgf@ya+\tcb@ppbb@height/2]{#1}}
 
 \def\tcb@set@waterbox@to@graphics#1{%
-  \setbox\tcb@waterbox=\color@hbox\pgfinterruptpicture{\expandafter\includegraphics\expandafter[\tcb@tikz@fill@graphics@options]{#1}}\endpgfinterruptpicture\color@endbox%
+  \setbox\tcb@waterbox=\color@hbox\pgfinterruptpicture%
+    \begingroup\edef\x{\endgroup\noexpand\includegraphics[\tcb@tikz@fill@graphics@options]}\x{#1}%
+    \endpgfinterruptpicture\color@endbox%
 }
 
 \def\tcb@set@waterbox@to@picture#1{%
@@ -1234,7 +1236,7 @@
   fill image options=,%
   fill plain image/.style={path picture={%
     \tcb@process@ppbb@wh%
-    \tcb@ppbb@textbox{\expandafter\includegraphics\expandafter[\tcb@tikz@fill@graphics@options]{#1}}%
+    \tcb@ppbb@textbox{\begingroup\edef\x{\endgroup\noexpand\includegraphics[\tcb@tikz@fill@graphics@options]}\x{#1}}%
   }},
   fill plain picture/.style={path picture={%
     \tcb@process@ppbb@wh%
@@ -1243,9 +1245,9 @@
   }},
   fill stretch image/.style={path picture={%
     \tcb@process@ppbb@wh%
-    \tcb@ppbb@textbox{\expandafter\includegraphics\expandafter[\tcb@tikz@fill@graphics@options,%
+    \tcb@ppbb@textbox{\begingroup\edef\x{\endgroup\noexpand\includegraphics[\tcb@tikz@fill@graphics@options,%
       width=\the\dimexpr\tcb@tikz@fill@graphics@scale\dimexpr\tcb@ppbb@width\relax,%
-      height=\the\dimexpr\tcb@tikz@fill@graphics@scale\dimexpr\tcb@ppbb@height\relax]{#1}}%
+      height=\the\dimexpr\tcb@tikz@fill@graphics@scale\dimexpr\tcb@ppbb@height\relax]}\x{#1}}%
   }},
   fill stretch picture/.style={path picture={%
     \tcb@process@ppbb@wh%
@@ -1703,28 +1705,48 @@
 
 
 \def\tcb@include@graphics{%
+  \let\tcb@graphics@options\kvtcb@graphics@options%
+  \ifnum\kvtcb@graphics@orientation>-1\relax%
+    \setbox\tcb@waterbox=\color@hbox\begingroup\edef\x{\endgroup\noexpand\includegraphics[\tcb@graphics@options]}\x{\imagepath}\color@endbox%
+    \ifcase\kvtcb@graphics@orientation\relax%
+      \ifdim\wd\tcb@waterbox<\dimexpr\ht\tcb@waterbox+\dp\tcb@waterbox\relax%
+        \appto\tcb@graphics@options{,angle=90}%
+      \fi%
+    \or%
+      \ifdim\wd\tcb@waterbox<\dimexpr\ht\tcb@waterbox+\dp\tcb@waterbox\relax%
+        \appto\tcb@graphics@options{,angle=-90}%
+      \fi%
+    \or%
+      \ifdim\wd\tcb@waterbox>\dimexpr\ht\tcb@waterbox+\dp\tcb@waterbox\relax%
+        \appto\tcb@graphics@options{,angle=90}%
+      \fi%
+    \or%
+      \ifdim\wd\tcb@waterbox>\dimexpr\ht\tcb@waterbox+\dp\tcb@waterbox\relax%
+        \appto\tcb@graphics@options{,angle=-90}%
+      \fi%
+    \fi%
+  \fi%
   \ifdefstring{\kvtcb@capture}{hbox}{%
     \tcbox{%
-      \begingroup\edef\x{\endgroup\noexpand\includegraphics[\expandonce\kvtcb@graphics@options]}%
+      \begingroup\edef\x{\endgroup\noexpand\includegraphics[\tcb@graphics@options]}%
       \x{\imagepath}%
     }%
   }{%
     \iftcb@fixedheight%
       \begin{tcolorbox}%
-        \begingroup\edef\x{\endgroup\noexpand\includegraphics[\expandonce\kvtcb@graphics@options,width=\linewidth,height=\tcbtextheight,keepaspectratio]}%
+        \begingroup\edef\x{\endgroup\noexpand\includegraphics[\tcb@graphics@options,width=\linewidth,height=\tcbtextheight,keepaspectratio]}%
         \x{\imagepath}%
       \end{tcolorbox}%
     \else%
       \ifdefempty\tcb@height@adjust{%
         \begin{tcolorbox}%
-          \begingroup\edef\x{\endgroup\noexpand\includegraphics[\expandonce\kvtcb@graphics@options,width=\linewidth]}%
+          \begingroup\edef\x{\endgroup\noexpand\includegraphics[\tcb@graphics@options,width=\linewidth]}%
           \x{\imagepath}%
         \end{tcolorbox}%
       }{% height fill
         \begin{tcolorbox}[underlay={%
           \begin{tcbclipinterior}%
-          \begingroup\edef\x{\endgroup\noexpand\tikzset{fill image options={\expandonce\kvtcb@graphics@options}}}\x%
-          \path[fill zoom image={\imagepath}]
+          \path[fill zoom image*={\tcb@graphics@options}{\imagepath}]
             ([xshift=\kvtcb@boxsep+\kvtcb@leftupper,yshift=\kvtcb@boxsep+\kvtcb@bottom]interior.south west) rectangle
             ([xshift=-\kvtcb@boxsep-\kvtcb@rightupper,yshift=-\kvtcb@boxsep-\kvtcb@top]interior.north east);
           \end{tcbclipinterior}%
@@ -1817,6 +1839,12 @@
   graphics options/.store in=\kvtcb@graphics@options,
   graphics pages/.store in=\kvtcb@graphics@pages,
   graphics directory/.store in=\kvtcb@graphics@directory,
+  graphics orientation/.is choice,
+  graphics orientation/as-is/.code={\def\kvtcb@graphics@orientation{-1}},
+  graphics orientation/landscape/.code={\def\kvtcb@graphics@orientation{0}},
+  graphics orientation/landscape*/.code={\def\kvtcb@graphics@orientation{1}},
+  graphics orientation/portrait/.code={\def\kvtcb@graphics@orientation{2}},
+  graphics orientation/portrait*/.code={\def\kvtcb@graphics@orientation{3}},
 }
 
 \newcommand{\tcbhypernode}[2]{\ifdefined\hypersetup\@ifundefined{pgf@sh@ns@#2}{}{%
@@ -1858,7 +1886,7 @@
     clip title=false,clip upper=false,clip lower=false,%
     no borderline,smart shadow arc,no shadow,no underlay,no finish,tikz reset,at begin tikz reset,at end tikz reset,%
     boxed title size=title,no boxed title style,hbox boxed title,code={\let\tcb@specialgeonodes@hook\relax},%
-    graphics options=,graphics pages={1,...,\pdfpages},graphics directory=,%
+    graphics options=,graphics pages={1,...,\pdfpages},graphics directory=,graphics orientation=as-is,%
   },
   initialize@reset=reset@skins,
 }
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbskinsjigsaw.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbskinsjigsaw.code.tex
index ec1180d05cd..d77a1c3a3a5 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 4.12 (2018/01/12)
+%% The LaTeX package tcolorbox - version 4.13 (2018/03/22)
 %% 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{4.12}
+\tcb@set@library@version{4.13}
 
 \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 8d666acced7..a7e9b0a1ac5 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 4.12 (2018/01/12)
+%% The LaTeX package tcolorbox - version 4.13 (2018/03/22)
 %% 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{4.12}
+\tcb@set@library@version{4.13}
 
 \RequirePackage{amsmath}
 
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbvignette.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbvignette.code.tex
index 4de697b72f7..97e05e21b2e 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbvignette.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbvignette.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 4.12 (2018/01/12)
+%% The LaTeX package tcolorbox - version 4.13 (2018/03/22)
 %% tcbvignette.code.tex: Code for ornamental frames
 %%
 %% -------------------------------------------------------------------------------------------
@@ -17,7 +17,7 @@
 %%
 %% This work consists of all files listed in README
 %%
-\tcb@set@library@version{4.12}
+\tcb@set@library@version{4.13}
 
 \tcbuselibrary{skins}
 
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbxparse.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbxparse.code.tex
index 2a862879679..8910fbf7027 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 4.12 (2018/01/12)
+%% The LaTeX package tcolorbox - version 4.13 (2018/03/22)
 %% 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{4.12}
+\tcb@set@library@version{4.13}
 
 \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 76e1313224a..a920818f71e 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 4.12 (2018/01/12)
+%% The LaTeX package tcolorbox - version 4.13 (2018/03/22)
 %% tcolorbox.sty: Text color boxes
 %%
 %% -------------------------------------------------------------------------------------------
@@ -18,8 +18,8 @@
 %% This work consists of all files listed in README
 %%
 \NeedsTeXFormat{LaTeX2e}
-\ProvidesPackage{tcolorbox}[2018/01/12 version 4.12 text color boxes]
-\def\tcb@version{4.12}
+\ProvidesPackage{tcolorbox}[2018/03/22 version 4.13 text color boxes]
+\def\tcb@version{4.13}
 
 \RequirePackage{pgf}[2008/01/15]
 \RequirePackage{verbatim}[2003/08/22]
@@ -414,6 +414,7 @@
   grow to right by/.code={%
     \tcbdimto\kvtcb@width{\kvtcb@width+#1}%
     \pgfkeysalso{enlarge right by={-\the\dimexpr#1\relax}}},%
+  grow sidewards by/.style={grow to left by={#1},grow to right by={#1}},%
   left skip/.style={grow to left by={-\dimexpr#1\relax}},
   right skip/.style={grow to right by={-\dimexpr#1\relax}},
   leftright skip/.style={left skip={#1},right skip={#1}},