Is it possible to give to each chapter a different color coming from something like a color array?
I basically know how to colorize text, but for that purpose the color value is fixed. What I want to do is build up something like an array of colors and then use the color specified in cell 1 for chapter 1, second chapter color in cell 2, etc.
Is something like that doable in Latex?
\documentclass{scrbook}
\usepackage{pgffor, xcolor}
\usepackage{pgfmath}
\pgfmathdeclarerandomlist{color}{{red!20!yellow}{blue}{yellow}{green!20}{red}{black!20}{orange}}% declare random list
\setkomafont{sectioning}{\pgfmathrandomitem{\randcolor}{color}\color{\randcolor}}% use random list
\begin{document}
%Showcase only!
\let\cleardoublepage\relax
\foreach \x in {A,...,H}{
\chapter{\x}}
\newpage
\end{document}
\documentclass{scrbook}
\usepackage{pgffor, xcolor}
\usepackage{pgfmath}
%The following list must be very long to make sure that pgfmath
%does not try to read a non existing element
% pgfarrys start form index 0 but chapters start form 1 so "dummy" is needed
% in order to have it started form the desired (first) color
% this could be any element cause it't not read anyway
\def\mytemparray{{"dummy" ,"blue!20!green","yellow","green!20","red","black!20","orange","red!20!yellow" ,"blue","yellow","green!20","red","black!20","orange"}}%
\setkomafont{sectioning}{\pgfmathparse{\mytemparray[\thechapter]}\color{\pgfmathresult} }
\begin{document}
%Showcase only!
\let\cleardoublepage\relax
\foreach \x in {A,...,H}{
\chapter{\x}}
\newpage
\end{document}
I used KOMAScript to alter the appearance of the chapters, just to make thing easy for me. Nevertheless the shown techniques should work with any approach to alter the sectioning.
You could use
\csname colorchap\Roman{chapter}\endcsname
as your color command in your chapter heading code and then you need
\newcommand\colorchapA{\color{red}}
\newcommand\colorchapB{\color{blue}}
\newcommand\colorchapC{\color{green}}
to set up as many colors as you need.
