This code is building from the solutions presented here. It also employs the Legrand Orange Book template.
I was trying to implement the chapter thumb solution to this template but could not get my code to work. I wanted the chapter thumb to increment down the pages as determined by the chapters.
Here is the code:
\documentclass{book}
\usepackage{geometry}
\usepackage[demo]{graphicx}
\usepackage{lipsum}
\usepackage{tikz}
\usepackage{xcolor}
\definecolor{ocre}{RGB}{243,102,25}
\usepackage{calc}
%======================================================================================
% CHAPTER THUMB
%======================================================================================
\usetikzlibrary{calc}
\pagestyle{plain}
\newcounter{chapshift}
\addtocounter{chapshift}{-1}
\newcommand\BoxColor{ocre!60}
\renewcommand\chaptermark[1]{\markboth{\thechapter.~#1}{}}
%======================================================================================
% PAGE HEADERS
%======================================================================================
\usepackage{etoolbox,fancyhdr}
\pagestyle{fancy}
\renewcommand{\chaptermark}[1]{\markboth{\sffamily\normalsize\bfseries \ #1}{}}
\renewcommand{\sectionmark}[1]{\markright{\sffamily\normalsize\thesection\hspace{5pt}#1}{}}
\fancyhf{} \fancyhead[LE,RO]{\sffamily\normalsize\thepage}
\fancyhead[LO]{\rightmark%
\begin{tikzpicture}[overlay,remember picture]
\node[fill=\BoxColor,inner sep=0pt,rectangle,text width=1cm,
text height=4cm,align=center,anchor=north east]
at ($ (current page.north east) + (-0cm,-2*\thechapshift cm) $)
{\rotatebox{90}{\parbox{4cm}{%
\centering\textcolor{black}{\bf\scshape\@chapapp~\thechapter}}}};
\end{tikzpicture}}
\fancyhead[RE]{\leftmark%
\begin{tikzpicture}[overlay,remember picture]
\node[fill=\BoxColor,inner sep=0pt,rectangle,text width=1cm,
text height=4cm,align=center,anchor=north west]
at ($ (current page.north west) + (-0cm,-2*\thechapshift cm) $)
{\rotatebox{90}{\parbox{4cm}{%
\centering\textcolor{black}{\bf\scshape\@chapapp~\thechapter}}}};
\end{tikzpicture}}
\renewcommand{\headrulewidth}{.5pt}
\addtolength{\headheight}{2.5pt}
\newcommand{\headrulecolor}[1]{\patchcmd{\headrule}{\hrule}{\color{#1}\hrule}{}{}}
\headrulecolor{blue!70}
\newcommand{\footrulecolor}[1]{\patchcmd{\footrule}{\hrule}{\color{#1}\hrule}{}{}}
\renewcommand{\footrulewidth}{0pt}
\fancypagestyle{plain}{\fancyhead{}\renewcommand{\headrulewidth}{0pt}}
\makeatletter
\renewcommand{\cleardoublepage}{
\clearpage\ifodd\c@page\else
\hbox{}
\vspace*{\fill}
\thispagestyle{empty}
\newpage
\fi}
\patchcmd{\@makechapterhead}
{\vskip 40\p@}
{\vskip 40\p@\stepcounter{chapshift}}{}{}
\makeatother
\usepackage{amsmath,amsfonts,amssymb,amsthm}
%----------------------------------------------------------------------------------------
% SECTION NUMBERING IN THE MARGIN
%----------------------------------------------------------------------------------------
\makeatletter
\renewcommand{\@seccntformat}[1]{\llap{\textcolor{ocre}{\csname the#1\endcsname}\hspace{1em}}}
\renewcommand{\section}{\@startsection{section}{1}{\z@}
{-4ex \@plus -1ex \@minus -.4ex}
{1ex \@plus.2ex }
{\normalfont\large\sffamily\bfseries}}
\renewcommand{\subsection}{\@startsection {subsection}{2}{\z@}
{-3ex \@plus -0.1ex \@minus -.4ex}
{0.5ex \@plus.2ex }
{\normalfont\sffamily\bfseries}}
\renewcommand{\subsubsection}{\@startsection {subsubsection}{3}{\z@}
{-2ex \@plus -0.1ex \@minus -.2ex}
{.2ex \@plus.2ex }
{\normalfont\small\sffamily\bfseries}}
\renewcommand\paragraph{\@startsection{paragraph}{4}{\z@}
{-2ex \@plus-.2ex \@minus .2ex}
{.1ex}
{\normalfont\small\sffamily\bfseries}}
%----------------------------------------------------------------------------------------
% CHAPTER HEADINGS
%----------------------------------------------------------------------------------------
\newcommand{\thechapterimage}{}%
\newcommand{\chapterimage}[1]{\renewcommand{\thechapterimage}{#1}}%
\def\@makechapterhead#1{%
{\parindent \z@ \raggedright \normalfont
\ifnum \c@secnumdepth >\m@ne
\if@mainmatter
\begin{tikzpicture}[remember picture,overlay]
\node at (current page.north west)
{\begin{tikzpicture}[remember picture,overlay]
\node[anchor=north west,inner sep=0pt] at (0,0) {\includegraphics[width=\paperwidth]{\thechapterimage}};
\draw[anchor=west] (\Gm@lmargin,-9cm) node [line width=2pt,rounded corners=15pt,draw=ocre,fill=white,fill opacity=0.5,inner sep=15pt]{\strut\makebox[22cm]{}};
\draw[anchor=west] (\Gm@lmargin+.3cm,-9cm) node {\huge\sffamily\bfseries\color{black}\thechapter. #1\strut};
\end{tikzpicture}};
\end{tikzpicture}
\else
\begin{tikzpicture}[remember picture,overlay]
\node at (current page.north west)
{\begin{tikzpicture}[remember picture,overlay]
\node[anchor=north west,inner sep=0pt] at (0,0) {\includegraphics[width=\paperwidth]{\thechapterimage}};
\draw[anchor=west] (\Gm@lmargin,-9cm) node [line width=2pt,rounded corners=15pt,draw=ocre,fill=white,fill opacity=0.5,inner sep=15pt]{\strut\makebox[22cm]{}};
\draw[anchor=west] (\Gm@lmargin+.3cm,-9cm) node {\huge\sffamily\bfseries\color{black}#1\strut};
\end{tikzpicture}};
\end{tikzpicture}
\fi\fi\par\vspace*{270\p@}}}
\begin{document}
\chapterimage{chapter_head_1.pdf}
\pagestyle{fancy}
\part{Part One}
\chapter{Text Chapter}
\section{Paragraphs of Text}\index{Paragraphs of Text}
\lipsum[1-7]
\subsection{Bullet Points}\index{Lists!Bullet Points}
\lipsum[1-7]
\lipsum[1-7]
\lipsum[1-7]
\part{Part Two}
\chapter{Presenting Information}
\lipsum[1-7]
\lipsum[1-7]
\lipsum[1-7]
\end{document}
The interaction between "Chapter Thumb" and "Chapter Headings" seems to where the issue is.
I tried to follow the example given by Gonzalo Medina here, but I couldn't get the code to work.
