I want to have custom format of chapters, which follows:
\titleformat{\chapter}[display]
{\centering\normalfont\Huge\bfseries}
{}{0pt}
{\titlerule\vspace{1ex}\filcenter}
[\vspace{.75ex}{\titlerule}]
I have found out that the title for ToC behaves like chapter. Is it possible to have the title for ToC as the default style and all the other chapters as my customized style (the code above)?
Here is my MWE:
\documentclass[14pt,twoside]{extbook}
\usepackage[utf8]{inputenc}
\usepackage[main=czech,slovak]{babel}
\usepackage{xcolor}
\usepackage{nameref}
\usepackage{hyperref}
\hypersetup{
colorlinks = true,
linkbordercolor = {white},
linkcolor = {black},
breaklinks
}
\usepackage[hang,flushmargin]{footmisc}
\raggedbottom
\usepackage{titletoc}
%\usepackage{sectsty}
\addtolength{\textheight}{47mm}
\addtolength{\textwidth}{22mm}
\addtolength{\oddsidemargin}{-1mm}
\addtolength{\evensidemargin}{-15mm}
\addtolength{\topmargin}{-23mm}
\emergencystretch 1em
\usepackage[labelfont=bf]{caption}
\setlength{\parindent}{.7pt}
\date{}
\title{Proceedings: 3.7.202X--4.7.202X}
\author{}
\usepackage{titlesec}
% https://tex.stackexchange.com/questions/136527/section-numbering-without-numbers
\titleformat{\section}[block]
{\normalfont\Large\bfseries\filcenter} % The style of the section title
{} % a prefix
{0pt} % How much space exists between the prefix and the title
{} % How the section is represented
\titleformat{\subsection}
{\normalfont\large\bfseries} % The style of the subsection title
{} % a prefix
{0pt} % How much space exists between the prefix and the title
{} % How the subsection is represented
% https://tex.stackexchange.com/questions/702239/adjustment-of-title-of-chapter-in-extbook
\titleformat{\chapter}[display]
{\centering\normalfont\Huge\bfseries}
{}{0pt}
{\titlerule\vspace{1ex}\filcenter}
[\vspace{.75ex}{\titlerule}]
% toc
\titlecontents{section}[0em]
{\vskip 0.5ex}%
{\hspace{5mm}\bfseries}% numbered sections formatting
{ }% unnumbered sections formatting
{ }
\setcounter{tocdepth}{2}
% https://tex.stackexchange.com/questions/10188/table-of-contents-with-additional-description-of-entries
\makeatletter
\newcommand*\l@sectioninfo{@dottedtocline{1}{5mm}{1cm}}
\def@nodottedtocline#1#2#3#4#5{%
\ifnum #1>\c@tocdepth \else
\vskip \z@ @plus.2\p@
{\leftskip #2\relax \rightskip @tocrmarg \parfillskip -\rightskip
\parindent #2\relax@afterindenttrue
\interlinepenalty@M
\leavevmode
@tempdima #3\relax
\advance\leftskip @tempdima \null\nobreak\hskip -\leftskip
{#4}\nobreak
\leaders\hbox{$\m@th
\mkern @dotsep mu\hbox{,}\mkern @dotsep
mu$}\hfill
\nobreak
\hb@xt@@pnumwidth{\hfil\normalfont \normalcolor }%
\par}%
\fi}
\makeatother
\def\sectioninfo#1{%
\addcontentsline{toc}{sectioninfo}{%
\noexpand\numberline{}#1}%
}
% https://tex.stackexchange.com/questions/94729/how-to-customize-chapter-heading-style
%-------------------------------------
\begin{document}
\pagestyle{plain}
\maketitle
\tableofcontents
\clearpage
\setlength{\parindent}{.7cm}
\chapter*{Introduction}
\begin{center}
\section{the first headline}\label{sek_13}\sectioninfo{name surname}
\setcounter{figure}{0} \setcounter{table}{0}\setcounter{footnote}{0}
\medskip
\textsc{name surname\footnote{organisation; email@gmail.com}}
\end{center}
\medskip
\noindent \emph{here goes the abstract}
\subsection*{intro}
\noindent Ut purus elit, vestibulum ut, placerat ac, adipiscing vitae, felis. Curabitur dictum gravida mauris. Nam arcu libero, nonummy eget, consectetuer id, vulputate a, magna.
\subsection*{next}
Ut purus elit, vestibulum ut, placerat ac, adipiscing vitae, felis. Curabitur dictum gravida mauris. Nam arcu libero, nonummy eget, consectetuer id, vulputate a, magna.
\clearpage
\begin{center}
\section{the second headline}\label{sek_14}
\setcounter{figure}{0} \setcounter{table}{0}\setcounter{footnote}{0}
\medskip
\textsc{name surname\footnote{organisation; email@gmail.com}}
\end{center}
\medskip
\noindent \emph{here goes the abstract}
\subsection*{intro}
\noindent Ut purus elit, vestibulum ut, placerat ac, adipiscing vitae, felis. Curabitur dictum gravida mauris. Nam arcu libero, nonummy eget, consectetuer id, vulputate a, magna.
\subsection*{next}
Ut purus elit, vestibulum ut, placerat ac, adipiscing vitae, felis. Curabitur dictum gravida mauris. Nam arcu libero, nonummy eget, consectetuer id, vulputate a, magna.
\clearpage
\cleardoublepage
\begin{center}
\section{the first headline}\label{dil_1}
\setcounter{figure}{0} \setcounter{table}{0}\setcounter{footnote}{0}
\medskip
\textsc{name surname\footnote{organisation; email@gmail.com}}
\end{center}
\medskip
\noindent \emph{here goes the abstract}
\subsection*{intro}
\noindent Ut purus elit, vestibulum ut, placerat ac, adipiscing vitae, felis. Curabitur dictum gravida mauris. Nam arcu libero, nonummy eget, consectetuer id, vulputate a, magna.
\subsection*{next}
Ut purus elit, vestibulum ut, placerat ac, adipiscing vitae, felis. Curabitur dictum gravida mauris. Nam arcu libero, nonummy eget, consectetuer id, vulputate a, magna.
\clearpage
\begin{center}
\section{the second headline}\label{dil_2}
\setcounter{figure}{0} \setcounter{table}{0}\setcounter{footnote}{0}
\medskip
\textsc{name surname\footnote{organisation; email@gmail.com}}
\end{center}
\medskip
\noindent \emph{here goes the abstract}
\subsection*{intro}
\noindent Ut purus elit, vestibulum ut, placerat ac, adipiscing vitae, felis. Curabitur dictum gravida mauris. Nam arcu libero, nonummy eget, consectetuer id, vulputate a, magna.
\subsection*{next}
Ut purus elit, vestibulum ut, placerat ac, adipiscing vitae, felis. Curabitur dictum gravida mauris. Nam arcu libero, nonummy eget, consectetuer id, vulputate a, magna.
\clearpage
\end{document}
The title of ToC shows as 
but I want it like 
Thanks all!
