3 files changed, 58 insertions, 9 deletions
diff --git a/Master/texmf-dist/doc/generic/pstricks/pst-news17.pdf b/Master/texmf-dist/doc/generic/pstricks/pst-news17.pdf
index cf0e3d600cf..597b6372a03 100644
--- a/Master/texmf-dist/doc/generic/pstricks/pst-news17.pdf
+++ b/Master/texmf-dist/doc/generic/pstricks/pst-news17.pdf
diff --git a/Master/texmf-dist/doc/generic/pstricks/pst-news17.tex b/Master/texmf-dist/doc/generic/pstricks/pst-news17.tex
index 41ea4a686f4..aa7991c65ff 100644
--- a/Master/texmf-dist/doc/generic/pstricks/pst-news17.tex
+++ b/Master/texmf-dist/doc/generic/pstricks/pst-news17.tex
@@ -52,7 +52,7 @@ Internally \Lprog{lualatex} starts \Lprog{xelatex} for creating the environments
 \fi
 
 %--------------------------------------------------------------------------------------
-\section{\texttt{pstricks.tex} (v. 2.73 -- 2017/05/18)}
+\section{\texttt{pstricks.tex} (v. 2.74 -- 2017/06/15)}
 %--------------------------------------------------------------------------------------
 \subsection{Error message}
 
@@ -81,7 +81,44 @@ This changes now to
                          _Not_Configured_For_This_Format
 \end{verbatim}
 
+\subsection{Random colors}
+There are now four predefined random ''colors``:
 
+\begin{verbatim}
+  \definecolor[ps]{randomgray}{gray}{Rand}%
+  \definecolor[ps]{randomrgb}{rgb}{Rand Rand Rand}%
+  \definecolor[ps]{randomcmyk}{cmyk}{Rand Rand Rand Rand}%
+  \definecolor[ps]{randomhsb}{hsb}{Rand Rand Rand}%
+\end{verbatim}
+
+\begin{LTXexample}[pos=t]
+\begin{pspicture}(10,5)
+\multido{\rA=0.0+0.1}{50}{\psline[linecolor=randomgray,linewidth=1mm](0,\rA)(10,\rA)}
+\end{pspicture}
+\end{LTXexample}
+
+\begin{LTXexample}[pos=t]
+\begin{pspicture}(10,5)
+\multido{\rA=0.0+0.1}{50}{\psline[linecolor=randomrgb,linewidth=1mm](0,\rA)(10,\rA)}
+\end{pspicture}
+\end{LTXexample}
+
+
+\begin{LTXexample}[pos=t]
+\begin{pspicture}(10,5)
+\multido{\rA=0.0+0.1}{50}{\psline[linecolor=randomcmyk,linewidth=1mm](0,\rA)(10,\rA)}
+\end{pspicture}
+\end{LTXexample}
+
+
+\begin{LTXexample}[pos=t]
+\begin{pspicture}(10,5)
+\multido{\rA=0.0+0.1}{50}{\psline[linecolor=randomhsb,linewidth=1mm](0,\rA)(10,\rA)}
+\end{pspicture}
+\end{LTXexample}
+
+
+The random counter can be initialized with \verb|\pstVerb{rrand srand}|.
 
 \subsection{refangle}
 
diff --git a/Master/texmf-dist/tex/generic/pstricks/pstricks.tex b/Master/texmf-dist/tex/generic/pstricks/pstricks.tex
index 1cbf1f61967..14af68d5e9c 100644
--- a/Master/texmf-dist/tex/generic/pstricks/pstricks.tex
+++ b/Master/texmf-dist/tex/generic/pstricks/pstricks.tex
@@ -135,14 +135,14 @@
 \catcode`\@=\PstAtCode\relax
 \ifx\PSTFPloaded\endinput\else   \input pst-fp.tex\fi
 %
+\catcode`\@=11\relax
 \@ifundefined{pgfutil@empty}{\input pgfutil-common.tex}{}
 \@ifundefined{pgkeys@empty}{\input pgfkeys.code.tex}{}
 \@ifundefined{pgffor@emptyvalues}{\input pgffor.code.tex}{}
 \let\pgfforeach\foreach
 %
-\def\fileversion{2.73a}
-\def\filedate{2017/05/22}
-\catcode`\@=11\relax
+\def\fileversion{2.74}
+\def\filedate{2017/06/15}
 \pst@addfams{pstricks}
 %
 % stolen from latex.ltx to make it TeX compatible
@@ -627,7 +627,7 @@
 \gdef\pslbrace[{ ]
 \gdef\psrbrace[} ]
 \endgroup
-
+%
 \pstVerb{
   /pssetRGBcolor  /setrgbcolor  load def
   /pssetCMYKcolor /setcmykcolor load def
@@ -638,8 +638,8 @@
   %\expandafter\edef\csname color@#1\endcsname{#2}%
   \expandafter\edef\csname\string\color@#1\endcsname{#2}%    hv 1.14 2005-12-17
   \ignorespaces}
-\def\pst@color#1{%
-  \def\pst@currentcolor{#1}\pstVerb{#1}\aftergroup\pst@endcolor}%
+%
+\def\pst@color#1{\def\pst@currentcolor{#1}\pstVerb{#1}\aftergroup\pst@endcolor}%
 \def\pst@endcolor{\pstVerb{\pst@currentcolor}}
 \def\pst@currentcolor{0 setgray}
 \def\altcolormode{%
@@ -681,8 +681,8 @@
 \def\pst@usecolor#1{\csname\string\color@#1\endcsname\space}
 %
 \def\newgray#1#2{%
-  \pst@checknum{#2}\pst@tempg
-  \@newcolor{#1}{\pst@tempg setgray}}
+    \pst@checknum{#2}\pst@tempg
+    \@newcolor{#1}{\pst@tempg setgray}}%
 \def\newrgbcolor#1#2{%
   \pst@expandafter\pst@getnumiii{#2} {} {} {} {}\@nil
   \@newcolor{#1}{\pst@tempg \pst@temph \pst@tempi setrgbcolor}}
@@ -703,6 +703,18 @@
 \newrgbcolor{yellow}{1 1 0}
 \newrgbcolor{cyan}{0 1 1}
 \newrgbcolor{magenta}{1 0 1}
+
+\@ifundefined{xglobal}%  do we have xcolor loaded?
+ {\@newcolor{randomgray}{Rand setgray}%
+  \@newcolor{randomrgb}{Rand Rand Rand setrgbcolor}%
+  \@newcolor{randomcmyk}{Rand Rand Rand Rand setcmykcolor}%
+  \@newcolor{randomhsb}{Rand Rand Rand sethsbcolor}%
+ }{%
+  \definecolor[ps]{randomgray}{gray}{Rand}%
+  \definecolor[ps]{randomrgb}{rgb}{Rand Rand Rand}%
+  \definecolor[ps]{randomcmyk}{cmyk}{Rand Rand Rand Rand}%
+  \definecolor[ps]{randomhsb}{hsb}{Rand Rand Rand}%
+ }
 %
 \define@boolkey[psset]{pstricks}[Pst@]{draft}[true]{}
 \define@key[psset]{pstricks}{bgcolor}{\def\pst@bgcolor{#1}}% background for pspicture