[Tex/LaTex] Customization of the Copenhagen theme

beamerformatting

I am preparing slides for my zeroth review (Project) using LaTeX. Now, I am very much appealed by this theme: $theme image$ . The theme's link is given here: link. But, It is not available. I got the base theme Copenhagen but now I need to customize it to the colors and gradients applied in the theme. How do I do that? Here is my MWE:

\documentclass[12pt]{beamer}
\usetheme{Copenhagen}
\title{The title of the paper}
\author{Subham Soni \and Sakthivel \and Syed Rabbani}
\date{\today}
\begin{document}
\begin{frame}
\titlepage
\end{frame}
\begin{frame}{Agenda}
\tableofcontents
\end{frame}
\end{document}

enter image description here

Best Answer

Customizing a beamer theme might require a considerable amount of work, since a theme involves a lot of elements and unfortunately just a singlr frame dosen't give enough information about all the elements involved in the theme.

Below I present an option which produces a similar result for the elements showed in the image attached to the question.

Initially I took Copenhagen as the starting point (see "initial version" below), but the code is shorter if one takes Warsaw:

Shorter version (using the `Warsaw` theme)

    \documentclass[12pt]{beamer}
    \usetheme{Warsaw}

    \definecolor{myblue1}{RGB}{35,119,189}
    \definecolor{myblue2}{RGB}{95,179,238}
    \definecolor{myblue3}{RGB}{129,168,207}
    \definecolor{myblue4}{RGB}{26,89,142}

    \setbeamercolor*{structure}{fg=myblue1,bg=blue}
    \setbeamercolor*{palette primary}{use=structure,fg=white,bg=structure.fg}
    \setbeamercolor*{palette secondary}{use=structure,fg=white,bg=structure.fg!75!black}
    \setbeamercolor*{palette tertiary}{use=structure,fg=white,bg=structure.fg!50!black}
    \setbeamercolor*{palette quaternary}{fg=black,bg=white}

    \setbeamercolor*{item projected}{fg=red,bg=myblue3!80}
    \setbeamercolor*{block title example}{fg=white,bg=myblue4}
    \setbeamercolor*{frametitle}{fg=black}

    \setbeamertemplate{blocks}[rounded][shadow=true]

    \makeatletter
    \pgfdeclarehorizontalshading[frametitle.bg,frametitle right.bg]{beamer@frametitleshade}{\paperheight}{%
      color(0pt)=(myblue2);
      color(\paperwidth)=(white)}

    \defbeamertemplate*{footline}{mysplit theme}
    {%
      \leavevmode%
      \hbox{\begin{beamercolorbox}[wd=.5\paperwidth,ht=2.5ex,dp=1.125ex,leftskip=.3cm plus1fill,rightskip=.3cm]{author in head/foot}%
        \usebeamerfont{author in head/foot}\insertshortauthor
      \end{beamercolorbox}%
      \begin{beamercolorbox}[wd=.5\paperwidth,ht=2.5ex,dp=1.125ex,leftskip=.3cm,rightskip=.3cm plus1fil]{title in head/foot}%
        \usebeamerfont{title in head/foot}\insertshorttitle\hfill
        \insertframenumber/\inserttotalframenumber\hspace*{0.5em}
      \end{beamercolorbox}}%
      \vskip0pt%
    }
    \makeatother

    \title{The title of the paper}
    \author{Subham Soni \and Sakthivel \and Syed Rabbani}
    \date{\today}

    \begin{document}

    \begin{frame}
    \maketitle
    \end{frame}

    \section{Propositional Argumentation Systems}
    \subsection{Propositional Logic}
    \begin{frame}
    \frametitle{Logical consequences}
    \begin{itemize}
      \item First.
      \item Second.
      \item Third.
    \begin{exampleblock}{Entailment Relation}
    \begin{itemize}
      \item First.
      \item Second.
    \end{itemize}
    \end{exampleblock}
      \item Fourth.
    \end{itemize}
    \end{frame}

    \subsection{Argumentation Systems}
    \begin{frame}
    \frametitle{Logical consequences}
    \end{frame}
    \subsection{Probabilistic Argumentation Systems}
    \begin{frame}
    \frametitle{Logical consequences}
    \end{frame}

    \section{Argumentation Systems on Set Constraint Logic}
    \begin{frame}
    test
    \end{frame}

    \end{document}

enter image description here

Initial version (using the `Copenhagen` theme)

\documentclass[12pt]{beamer}
\usepackage[many]{tcolorbox}

\usetheme{Copenhagen}

\definecolor{myblue1}{RGB}{35,119,189}
\definecolor{myblue2}{RGB}{95,179,238}
\definecolor{myblue3}{RGB}{129,168,207}
\definecolor{myblue4}{RGB}{26,89,142}

\setbeamercolor*{structure}{fg=myblue1,bg=blue}
\setbeamercolor*{palette primary}{use=structure,fg=white,bg=structure.fg}
\setbeamercolor*{palette secondary}{use=structure,fg=white,bg=structure.fg!75!black}
\setbeamercolor*{palette tertiary}{use=structure,fg=white,bg=structure.fg!50!black}
\setbeamercolor*{palette quaternary}{fg=black,bg=white}

\setbeamercolor*{item projected}{fg=red,bg=myblue3!80}
\setbeamercolor*{block title example}{fg=white,bg=myblue4}

\setbeamertemplate{blocks}[rounded][shadow=true]

\makeatletter
\defbeamertemplate*{frametitle}{mydefault}[1][left]
{
  \ifbeamercolorempty[bg]{frametitle}{}{\nointerlineskip}%
  \nointerlineskip%
  \@tempdima=\textwidth%
  \advance\@tempdima by\beamer@leftmargin%
  \advance\@tempdima by\beamer@rightmargin%
  \begin{tcolorbox}[
  enhanced,
  outer arc=0pt,
  arc=0pt,
  boxrule=0pt,
  top=0pt,
  bottom=0pt,
  enlarge left by=-\beamer@leftmargin,
  enlarge right by=-\beamer@rightmargin,
  width=\paperwidth,
  nobeforeafter,
  interior style={
    left color=myblue2,
    right color=white
    },
  shadow={0mm}{-0.4mm}{0mm}{black!60,opacity=0.6},    
  shadow={0mm}{-0.8mm}{0mm}{black!40,opacity=0.4},    
  ]
    \usebeamerfont{frametitle}%
    \vbox{}\vskip-1ex%
    \if@tempswa\else\csname beamer@fte#1\endcsname\fi%
    \insertframetitle\par%
    {%
      \ifx\insertframesubtitle\@empty%
      \else%
      {\usebeamerfont{framesubtitle}\usebeamercolor[fg]{framesubtitle}\insertframesubtitle\strut\par}%
      \fi
    }%
    \vskip-1ex%
    \if@tempswa\else\vskip-.3cm\fi% set inside beamercolorbox... evil here...
  \end{tcolorbox}%
}
\defbeamertemplate*{footline}{mysplit theme}
{%
  \leavevmode%
  \hbox{\begin{beamercolorbox}[wd=.5\paperwidth,ht=2.5ex,dp=1.125ex,leftskip=.3cm plus1fill,rightskip=.3cm]{author in head/foot}%
    \usebeamerfont{author in head/foot}\insertshortauthor
  \end{beamercolorbox}%
  \begin{beamercolorbox}[wd=.5\paperwidth,ht=2.5ex,dp=1.125ex,leftskip=.3cm,rightskip=.3cm plus1fil]{title in head/foot}%
    \usebeamerfont{title in head/foot}\insertshorttitle\hfill
    \insertframenumber/\inserttotalframenumber\hspace*{0.5em}
  \end{beamercolorbox}}%
  \vskip0pt%
}
\makeatother

\title{The title of the paper}
\author{Subham Soni \and Sakthivel \and Syed Rabbani}
\date{\today}

\begin{document}

\begin{frame}
\maketitle
\end{frame}

\section{Propositional Argumentation Systems}
\subsection{Propositional Logic}
\begin{frame}
\frametitle{Logical consequences}
\begin{itemize}
  \item First.
  \item Second.
  \item Third.
\begin{exampleblock}{Entailment Relation}
\begin{itemize}
  \item First.
  \item Second.
\end{itemize}
\end{exampleblock}
  \item Fourth.
\end{itemize}
\end{frame}

\subsection{Argumentation Systems}
\begin{frame}
\frametitle{Logical consequences}
\end{frame}
\subsection{Probabilistic Argumentation Systems}
\begin{frame}
\frametitle{Logical consequences}
\end{frame}

\section{Argumentation Systems on Set Constraint Logic}
\begin{frame}
test
\end{frame}

\end{document}

enter image description here

If there are other elements of the theme that you want to modify, please open a fresh new question focalizing on the specific element.

As a final note, in the link provided, one can see that this theme was designed for the Theoretical Computer Science Research Group of the University of Fribourg, Switzerland, and the link provided there is broken. There might be copyright issues with the theme, so you might well check first to see if there's no legal problem in producing and using this theme; in fact, if you contact the group, you could directly ask them for the source files for the theme.

Related Solutions

[Tex/LaTex] Beamer copenhagen theme banner height

Here is a possible solution for this particular case. It completely redefines the headline to achieve the wanted effect. The headline is taken from the split outer theme. Note that subsections are not included, as your image shows, although they can be added with little effort.

Redefined header (to be inserted in the preamble):

\makeatletter
\setbeamertemplate{headline}
{%
  \leavevmode%
  \@tempdimb=2.4375ex%
  \multiply\@tempdimb by\beamer@sectionmax%
  \ifdim\@tempdimb>0pt%
    \advance\@tempdimb by 1.125ex%
    \begin{beamercolorbox}[wd=.5\paperwidth,ht=\@tempdimb]{section in head/foot}%
      \vbox to\@tempdimb{\vfil\insertsectionnavigation{.5\paperwidth}\vfil}%
    \end{beamercolorbox}%
    \begin{beamercolorbox}[wd=.5\paperwidth,ht=\@tempdimb]{subsection in head/foot}%
      \vbox to\@tempdimb{\vfil\hfill \includegraphics[height=0.8\@tempdimb]{logo.jpeg} \hspace{1mm}~\vfil}%
    \end{beamercolorbox}%
  \fi%
}
\makeatother

The height of the header is calculated from the total number of sections and stored in \@tempdimb. This height is used throughout the definition of the headline. In the code above the logo is included taking 80% of the height of the headline, so it will be automatically resized according to the total number of sections.

Example renderings

Two sections:
Five sections:

[Tex/LaTex] Beamer Theme Customization

Probably you will need to do some other adjustments, since no info was provided regarding inner elements (blocks, enumerated/itemized labels, etc.), but this will give you what you need and the possibility to define appropriately all other required elements:

\documentclass[11pt]{beamer}
\mode<presentation>
\usepackage[english]{babel}
\usepackage[utf8]{inputenc}
\usepackage{lmodern}
\usepackage{multimedia}
\usepackage{epstopdf}

\useoutertheme{smoothbars}
\useinnertheme{rounded}

\definecolor{mygreen1}{RGB}{0,73,44} 
\definecolor{mygreen2}{RGB}{0,140,81} 

\setbeamercolor{structure}{fg=white,bg=mygreen2}
\setbeamercolor*{palette primary}{fg=mygreen1,bg=mygreen2}
\setbeamercolor*{palette secondary}{fg=white,bg=mygreen1}
\setbeamercolor*{palette tertiary}{bg=mygreen1,fg=white}
\setbeamercolor*{palette quaternary}{fg=white,bg=mygreen2!50}

\setbeamercolor{frametitle}{fg=white!90!mygreen1}

\setbeamercolor{section in head/foot}{fg=white,bg=mygreen1}
\setbeamercolor{author in head/foot}{fg=white,bg=mygreen2}
\setbeamercolor{title in head/foot}{fg=white,bg=mygreen1}

\setbeamertemplate{navigation symbols}{}

\defbeamertemplate*{headline}{mytheme}
{%
  \begin{beamercolorbox}[ht=2.25ex,dp=3.75ex]{section in head/foot}
    \insertnavigation{\paperwidth}
  \end{beamercolorbox}%
}%

\defbeamertemplate*{footline}{mytheme}
{
  \leavevmode%
  \hbox{%
  \begin{beamercolorbox}[wd=.5\paperwidth,ht=2.25ex,dp=1ex,right]{author in head/foot}%
    \usebeamerfont{author in head/foot}\insertshortauthor\hspace*{2em}
  \end{beamercolorbox}%
  \begin{beamercolorbox}[wd=.5\paperwidth,ht=2.25ex,dp=1ex,left]{title in head/foot}%
    \usebeamerfont{title in head/foot}\hspace*{2em}\insertshortsubtitle\hspace*{2em}
    \insertframenumber{} / \inserttotalframenumber
  \end{beamercolorbox}}%
  \vskip0pt%
}

\title{The Title}
\subtitle[The Subtitlein Footline]{The Subtitle}
\author{The Author}

\pgfdeclareimage[height=1cm]{logo}{dog1}%<- change dog1 for yor logo image file
\logo{\pgfuseimage{logo}}

\begin{document}

\begin{frame}
\maketitle
\end{frame}

\section{Test section one}
\begin{frame}
\frametitle{Test title}
test
\end{frame}
\subsection{Test subsection}
\begin{frame}
test
\end{frame}
\subsection{Test subsection}
\begin{frame}
test
\end{frame}

\section{Test section two}
\begin{frame}
\frametitle{Test title}
test
\end{frame}
\subsection{Test subsection}
\begin{frame}
test
\end{frame}
\subsection{Test subsection}
\begin{frame}
test
\end{frame}

\end{document}

enter image description here

Best Answer

Shorter version (using the Warsaw theme)

Initial version (using the Copenhagen theme)

Related Solutions

[Tex/LaTex] Beamer copenhagen theme banner height

[Tex/LaTex] Beamer Theme Customization

Related Question

Shorter version (using the `Warsaw` theme)

Initial version (using the `Copenhagen` theme)