diff --git a/lines-example.tex b/lines-example.tex
index 562794a..bce6c9b 100644
--- a/lines-example.tex
+++ b/lines-example.tex
@@ -2,7 +2,7 @@
 \usetheme[author,institute,date,title,page,hidelogo]{lines}
 \usecolortheme{aptero}
 
-\title[Lines beamer theme]{Lines}
+\title[Lines beamer theme usage]{Lines theme user guide}
 \subtitle{a line-based theme for beamer}
 \author[Benda]{Jan Benda}
 \institute[T\"ubingen]{Neuroethology, University of T\"ubingen}
@@ -92,37 +92,6 @@
   \end{block}
 \end{frame}
 
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
-\begin{frame}[fragile]{Frame title}
-  \begin{block}{Title with logo}
-    \verb!\setbeamertemplate{frametitle}[boxlinelogo]!
-  \end{block}
-  \begin{block}{Title without logo}
-    \verb!\setbeamertemplate{frametitle}[boxline]!
-  \end{block}
-  \begin{block}{Color/Font}
-    \verb!\setbeamercolor{frametitle}{fg=blue, bg=white}!\\
-    \verb!\setbeamerfont{frametitle}{size=\LARGE}!
-  \end{block}
-\end{frame}
-
-\begin{frame}[fragile]{Frame title line}
-  \begin{block}{Thin line respecting page margins}
-    \verb!\setbeamertemplate{frametitle line}[text][0.5pt]!
-  \end{block}
-  \begin{block}{Thick line}
-    \verb!\setbeamertemplate{frametitle line}[text][3pt]!
-  \end{block}
-  \begin{block}{Line over full page}
-    \verb!\setbeamertemplate{frametitle line}[page][1pt]!
-  \end{block}
-  \begin{block}{Color}
-    \verb!\setbeamercolor{frametitle line}{fg=blue}!\\
-    An empty foreground color hides the line:\\
-    \verb!\setbeamercolor{frametitle line}{fg=}!
-  \end{block}
-\end{frame}
-
 \begin{frame}[fragile]{Frame subtitle}
   \framesubtitle{Here we have a subtitle}
   \begin{block}{Frame environment with subtitle}
@@ -132,13 +101,10 @@
     \verb!  Some content.!\\
     \verb!\end{frame}!
   \end{block}
+  \vfill
   \begin{alertblock}{Try to avoid subtitles!}
     Keep the messages on your slides simple and clean.
   \end{alertblock}
-  \begin{block}{Color/Font}
-    \verb!\setbeamercolor{framesubtitle}{fg=blue}!\\
-    \verb!\setbeamerfont{framesubtitle}{size=\large}!
-  \end{block}
 \end{frame}
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
@@ -200,91 +166,6 @@
   \end{minipage}
 \end{frame}
 
-\newcommand{\itemizesymboldemo}[1]{
-  \begin{minipage}[t]{0.17\textwidth}
-    \setbeamertemplate{itemize item}[#1]
-    \texttt{#1}:
-    \begin{itemize}
-    \item Apple
-    \item Orange
-    \item Banana
-    \end{itemize}
-  \end{minipage}
-  \setbeamertemplate{itemize item}[arrow]
-}
-
-\begin{frame}[fragile]{Itemize symbols}
-  \begin{block}{Itemize item}
-    \verb!\setbeamertemplate{itemize item}[arrow]!\\
-    \verb!\setbeamertemplate{itemize subitem}[dash]!\\
-    \verb!\setbeamercolor{itemize item}{fg=black}!
-  \end{block}
-  \vfill
-  \itemizesymboldemo{default}
-  \itemizesymboldemo{triangle}
-  \itemizesymboldemo{square}
-  \itemizesymboldemo{circle}
-  \itemizesymboldemo{ball}
-
-  \vfill\vfill
-  \itemizesymboldemo{arrow}
-  \itemizesymboldemo{filledarrow}
-  \itemizesymboldemo{dash}
-  \itemizesymboldemo{check}
-  \itemizesymboldemo{uncheck}
-\end{frame}
-
-\newcommand{\enumeratedemo}{
-  \begin{enumerate}
-  \item Apple
-  \item Orange
-  \item Banana
-  \end{enumerate}
-}
-
-\newcommand{\enumeratesymboldemo}[1]{
-  \begin{minipage}[t]{0.17\textwidth}
-    \setbeamertemplate{enumerate item}[#1]
-    \texttt{#1}:
-    \enumeratedemo
-  \end{minipage}
-  \setbeamertemplate{enumerate item}[default]
-}
-
-\begin{frame}[fragile]{Enumerate symbols}
-  \begin{block}{Enumerate item}
-    \verb!\setbeamertemplate{enumerate item}[arabic]!\\
-    \verb!\setbeamertemplate{enumerate subitem}[alph]!\\
-    \verb!\setbeamercolor{enumerate item}{fg=black}!
-  \end{block}
-  \vfill
-  \enumeratesymboldemo{default}
-  \enumeratesymboldemo{square}
-  \enumeratesymboldemo{circle}
-  \enumeratesymboldemo{ball}
-
-  \vfill\vfill
-  \enumeratesymboldemo{alph}
-  \enumeratesymboldemo{Alph}
-  \enumeratesymboldemo{arabic}
-  \enumeratesymboldemo{roman}
-  \enumeratesymboldemo{Roman}
-\end{frame}
-
-\begin{frame}[fragile]{Custom enumerate symbols}
-  \begin{block}{Alph within brackets}
-    \verb!\setbeamertemplate{enumerate item}{(\alph{enumi})}!
-  \end{block}
-  \setbeamertemplate{enumerate item}{(\alph{enumi})}
-  \enumeratedemo
-  \begin{block}{Arabic with closing bracket}
-    \verb!\setbeamertemplate{enumerate item}{\arabic{enumi})}!
-  \end{block}
-  \setbeamertemplate{enumerate item}{\arabic{enumi})}
-  \enumeratedemo
-  \setbeamertemplate{enumerate item}[arabic]
-\end{frame}
-
 \begin{frame}[fragile]{Nested itemize and enumerate}
   \begin{minipage}[t]{0.45\textwidth}
     \vspace{-3ex}
@@ -372,12 +253,6 @@
 
   \vfill
   Structural \structure{emphasis} is provided by the \verb!\structure{}! command.
-
-  \vfill
-  \begin{block}{Colors/Fonts}
-    \verb!\setbeamercolor{alerted text}{fg=red}!\\
-    \verb!\setbeamercolor{structure}{fg=blue}!
-  \end{block}
 \end{frame}
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
@@ -415,154 +290,6 @@
   \end{exampleblock}
 \end{frame}
 
-\newcommand{\blockdemo}{
-  \begin{block}{Some block}
-    Block with title and content.
-  \end{block}
-}
-
-\newcommand{\blockthemedemo}[2]{
-  \vspace{-1ex}
-  \setbeamertemplate{block begin}[#1]#2#2
-  \setbeamertemplate{block end}[#1]#2
-  \blockdemo
-  \setbeamertemplate{block begin}[lines]{0.5pt}{0.5pt}
-  \setbeamertemplate{block end}[lines]{0.5pt}
-}
-
-\begin{frame}[fragile]{Themes for block environments with title}
-  The box of the \texttt{default} theme extends beyond \verb!\textwidth! and the title box
-  is wider than the body box:\\
-  \begin{small}
-    \verb!\setbeamertemplate{block begin}[default]!
-    \verb!\setbeamertemplate{block end}[default]!
-  \end{small}
-  \blockthemedemo{default}{}
-  \vfill
-  The box of the \texttt{rounded} theme also extends beyond \verb!\textwidth!:\\
-  \begin{small}
-    \verb!\setbeamertemplate{block begin}[rounded]!
-    \verb!\setbeamertemplate{block end}[rounded]!
-  \end{small}
-  \blockthemedemo{rounded}{}
-  \vfill
-  The box of the \texttt{lines} theme is as wide as \verb!\textwidth!
-  and the title box always has the same height:\\
-  \begin{small}
-    \verb!\setbeamertemplate{block begin}[lines]{0pt}{0pt}!
-    \verb!\setbeamertemplate{block end}[lines]{0pt}!
-  \end{small}
-  \blockthemedemo{lines}{{0pt}}
-\end{frame}
-
-\renewcommand{\blockthemedemo}[2]{
-  \vspace{-1ex}
-  \setbeamertemplate{block begin}[#1]#2#2
-  \setbeamertemplate{block end}[#1]#2
-  \begin{block}{}
-    Block without title.
-  \end{block}
-  \setbeamertemplate{block begin}[lines]{0.5pt}{0.5pt}
-  \setbeamertemplate{block end}[lines]{0.5pt}
-}
-
-\begin{frame}[fragile]{Themes for block environments without title}
-  The \texttt{default} theme still shows a title box:\\
-  \begin{small}
-    \verb!\setbeamertemplate{block begin}[default]!
-    \verb!\setbeamertemplate{block end}[default]!
-  \end{small}
-  \blockthemedemo{default}{}
-  \vfill
-  The \texttt{rounded} theme works as expected:\\
-  \begin{small}
-    \verb!\setbeamertemplate{block begin}[rounded]!
-    \verb!\setbeamertemplate{block end}[rounded]!
-  \end{small}
-  \blockthemedemo{rounded}{}
-  \vfill
-  The \texttt{lines} theme works as expected and stays within \verb!\textwidth!:\\
-  \begin{small}
-    \verb!\setbeamertemplate{block begin}[lines]{0pt}{0pt}!
-    \verb!\setbeamertemplate{block end}[lines]{0pt}!
-  \end{small}
-  \blockthemedemo{lines}{{0pt}}
-\end{frame}
-
-\newcommand{\blockcolordemo}[4]{
-  \setbeamertemplate{block begin}[lines]{0pt}{0pt}
-  \setbeamertemplate{block end}[lines]{0pt}
-  \setbeamercolor{block title}{fg=#1, bg=#2}
-  \setbeamercolor{block body}{fg=#3, bg=#4}
-  \begin{small}
-    \texttt{\textbackslash setbeamercolor\{block title\}\{fg=#1, bg=#2\}}\\
-    \texttt{\textbackslash setbeamercolor\{block body\}\{fg=#3, bg=#4\}}\\
-  \end{small}
-  \blockdemo
-  \setbeamertemplate{block begin}[lines]{0.5pt}{0.5pt}
-  \setbeamertemplate{block end}[lines]{0.5pt}
-  \setbeamercolor{block title}{fg=white, bg=blue}
-  \setbeamercolor{block body}{fg=normal text.fg, bg=black!15}
-}
-
-\begin{frame}[fragile]{Colors for block environments}
-  \blockcolordemo{white}{red}{blue}{blue!20}
-  \vfill
-  \blockcolordemo{}{}{}{}
-  \vfill
-  \blockcolordemo{black}{white}{black}{white}
-\end{frame}
-
-\newcommand{\blockfontdemo}[2]{
-  \setbeamertemplate{block begin}[lines]{0pt}{0pt}
-  \setbeamertemplate{block end}[lines]{0pt}
-  \begin{small}
-    \texttt{\textbackslash setbeamerfont\{block title\}\{size=\textbackslash #1\}}\\
-    \texttt{\textbackslash setbeamerfont\{block body\}\{size=\textbackslash #2\}}\\
-  \end{small}
-  \blockdemo
-  \setbeamertemplate{block begin}[lines]{0.5pt}{0.5pt}
-  \setbeamertemplate{block end}[lines]{0.5pt}
-  \setbeamerfont{block title}{parent=normal text}
-  \setbeamerfont{block body}{parent=normal text}
-}
-
-\begin{frame}[fragile]{Fonts for block environments}
-  \setbeamerfont{block title}{size=\LARGE}
-  \setbeamerfont{block body}{size=\normalsize}
-  \blockfontdemo{Large}{normalsize}
-  \vfill
-  \setbeamerfont{block title}{size=\normalsize}
-  \setbeamerfont{block body}{size=\tiny}
-  \blockfontdemo{normalsize}{tiny}
-\end{frame}
-
-\newcommand{\blocklinedemo}[3]{
-  \setbeamertemplate{block begin}[lines]{2pt}{2pt}
-  \setbeamertemplate{block end}[lines]{2pt}
-  \setbeamercolor{block line top}{fg=#1}
-  \setbeamercolor{block line middle}{fg=#2}
-  \setbeamercolor{block line bottom}{fg=#3}
-  \begin{small}
-    \texttt{\textbackslash setbeamercolor\{block line top\}\{fg=#1\}}\\
-    \texttt{\textbackslash setbeamercolor\{block line middle\}\{fg=#2\}}\\
-    \texttt{\textbackslash setbeamercolor\{block line bottom\}\{fg=#3\}}
-  \end{small}
-  \blockdemo
-  \setbeamertemplate{block begin}[lines]{0.5pt}{0.5pt}
-  \setbeamertemplate{block end}[lines]{0.5pt}
-  \setbeamercolor{block line top}{fg=}
-  \setbeamercolor{block line middle}{fg=}
-  \setbeamercolor{block line bottom}{fg=blue}
-}
-
-\begin{frame}[fragile]{Lines for block environments}
-  \blocklinedemo{blue!80!black}{white}{blue!50}
-  \vfill
-  \blocklinedemo{}{blue!50}{}
-  \vfill
-\end{frame}
-
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
 \begin{frame}{Theorems --- for mathematicians}
   \begin{theorem}
@@ -595,15 +322,6 @@
   \messagebox{Take home message}
   \vfill
   Use it!
-  \vfill
-  \begin{block}{Colors/Fonts/Template}
-    \verb!\setbeamertemplate{message}[lines]{1pt}{1pt} % width top/bottom line!\\
-    \verb!\setbeamercolor{message}{fg=white, bg=red}!\\
-    \verb!\setbeamercolor{message line top}{fg=}!\\
-    \verb!\setbeamercolor{message line bottom}{fg=}!\\
-    \verb!\setbeamertemplate{message symbol}[circle]   % default, circle, arrow!\\
-    \verb!\setbeamercolor{message symbol}{fg=white}!
-  \end{block}
 \end{frame}
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
@@ -631,297 +349,16 @@
   \end{verse}
 \end{frame}
 
-\newcommand{\quotedemo}{
-  \begin{quote}[Hamlet]
-    To be, or not to be.
-  \end{quote}
-  \vfill
-}
-
-\newcommand{\quotesymboldemo}[2]{
-  \setbeamertemplate{quote symbol}[#1]#2
-  \begin{small}
-    \texttt{\textbackslash setbeamertemplate\{quote symbol\}[#1]#2}
-  \end{small}
-  \quotedemo
-  \setbeamertemplate{quote symbol}[opendblquote]
-}
-
-\begin{frame}[fragile]{Quote symbol settings}
-  \quotesymboldemo{default}{}
-  \quotesymboldemo{closequote}{}
-  \quotesymboldemo{openquote}{}
-  \quotesymboldemo{closedblquote}{}
-  \quotesymboldemo{opendblquote}{}
-  \quotesymboldemo{opendblquote}{[2]}
-\end{frame}
-
-\newcommand{\quotesymbolfontdemo}[1]{
-  \setbeamerfont{quote symbol}{family*=#1}
-  \begin{small}
-    \texttt{\textbackslash setbeamerfont\{quote symbol\}\{family*=#1\}}
-  \end{small}
-  \quotedemo
-  \setbeamerfont{quote symbol}{family*=pbk}
-}
-
-\begin{frame}[fragile]{Font settings for quote symbol}
-  \quotesymbolfontdemo{pbk}
-  \quotesymbolfontdemo{pnc}
-  \quotesymbolfontdemo{qcs}
-  \quotesymbolfontdemo{phv}
-\end{frame}
-
-\newcommand{\quotesourcedemo}[1]{
-  \setbeamertemplate{quote source}[#1]
-  \begin{small}
-    \texttt{\textbackslash setbeamertemplate\{quote source\}[#1]}
-  \end{small}
-  \quotedemo
-  \setbeamertemplate{quote source}[rightline]
-}
-
-\begin{frame}[fragile]{Source settings for quote and quotation environments}
-  Do not print the source:\\
-  \quotesourcedemo{default}
-  Left aligned in a new line:\\
-  \quotesourcedemo{left}
-  \quotesourcedemo{leftbrackets}
-  \begin{alertblock}{}
-    In the template names, replace \texttt{quote} by
-    \texttt{quotation} to apply the same changes to the
-    \texttt{quotation} environment.
-  \end{alertblock}
-\end{frame}
-
-\begin{frame}[fragile]{Source settings for quote and quotation environments}
-  Right aligned in a separate line:
-  \vfill
-  \quotesourcedemo{right}
-  \quotesourcedemo{rightbrackets}
-  \quotesourcedemo{dashright}
-  \quotesourcedemo{tilderight}
-\end{frame}
-
-\begin{frame}[fragile]{Source settings for quote and quotation environments}
-  Right aligned within the last line if possible:
-  \vfill
-  \quotesourcedemo{rightline}
-  \quotesourcedemo{rightlinebrackets}
-  \quotesourcedemo{dashrightline}
-  \quotesourcedemo{tilderightline}
-  In case the last line is too long, the source is printed on the next line:
-  \begin{quote}[Hamlet by William Shakespeare]
-    To be, or not to be, that is the question:
-    Whether 'tis nobler in the mind to suffer ...
-  \end{quote}
-\end{frame}
-
-\newcommand{\quotecolordemo}[2]{
-  \setbeamercolor{quote line top}{fg=#1}
-  \setbeamercolor{quote line bottom}{fg=#2}
-  \begin{small}
-    \texttt{\textbackslash setbeamercolor\{quote line top\}\{fg=#1\}}\\
-    \texttt{\textbackslash setbeamercolor\{quote line bottom\}\{fg=#2\}}
-  \end{small}
-  \quotedemo
-}
-
-\begin{frame}[fragile]{Line settings for quote and quotation environments}
-  \setbeamertemplate{quote begin}[lines][2pt]
-  \setbeamertemplate{quote end}[lines][2pt]
-  \begin{small}
-    \verb!\setbeamertemplate{quote begin}[lines][2pt]!
-    \verb!\setbeamertemplate{quote end}[lines][2pt]!
-  \end{small}
-  \vfill
-  \quotecolordemo{}{}
-  \quotecolordemo{blue}{}
-  \quotecolordemo{}{blue}
-  \quotecolordemo{red}{blue}
-\end{frame}
-\setbeamertemplate{quote begin}[lines][0.5pt]
-\setbeamertemplate{quote end}[lines][0.5pt]
-\setbeamercolor{quote line top}{fg=}
-\setbeamercolor{quote line bottom}{fg=}
-
-\newcommand{\quoteboxdemo}[2]{
-  \setbeamercolor{quote}{fg=#1, bg=#2}
-  \begin{small}
-    \texttt{\textbackslash setbeamercolor\{quote\}\{fg=#1, bg=#2\}}\\
-  \end{small}
-  \quotedemo
-  \setbeamercolor{quote}{fg=normal text.fg, bg=black!15}
-}
-
-\begin{frame}[fragile]{Colors and fonts for quote and quotation environments}
-  \setbeamerfont{quote}{shape=\upshape}
-  {\small \verb!\setbeamerfont{quote}{shape=\upshape}!\\}
-  \quotedemo
-  \setbeamerfont{quote}{size=\normalsize, shape=\slshape}
-  \quoteboxdemo{blue}{}
-  \quoteboxdemo{red}{black!15}
-  \setbeamercolor{quote symbol}{fg=green}
-  {\small \verb!\setbeamercolor{quote symbol}{fg=green}!\\}
-  \quotedemo
-  \setbeamercolor{quote symbol}{fg=red}
-  \setbeamercolor{quote source}{fg=blue}
-  {\small \verb!\setbeamercolor{quote source}{fg=blue}!\\}
-  \quotedemo
-  \setbeamercolor{quote source}{fg=}
-  \setbeamerfont{quote source}{size=\footnotesize, shape=\itshape}
-  {\small \verb!\setbeamerfont{quote source}{size=\footnotesize, shape=\itshape}!\\}
-  \quotedemo
-  \setbeamercolor{quote source}{fg=}
-  \setbeamerfont{quote source}{size=\normalsize}
-\end{frame}
- 
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
-\newcommand{\colorpatch}[1]{%
-  \parbox{10ex}{\centerline{\strut#1}\textcolor{#1}{\rule{10ex}{10ex}}}
-  \quad}
-
-\begin{frame}{Colors of the aptero theme}
-  \vspace{1ex}
-  \colorpatch{red}
-  \colorpatch{orange}
-  \colorpatch{yellow}
-  \colorpatch{lightgreen}
-  \colorpatch{green}
-
-  \vspace{1ex}
-  \colorpatch{darkgreen}
-  \colorpatch{cyan}
-  \colorpatch{lightblue}
-  \colorpatch{blue}
-  \colorpatch{purple}
-
-  \vspace{1ex}
-  \colorpatch{magenta}
-  \colorpatch{pink}
-  \colorpatch{white}
-  \colorpatch{gray}
-  \colorpatch{black}
-\end{frame}
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
-\newcommand{\footlinecolordemo}[2]{
-  \setbeamercolor{footline}{fg=#1, bg=#2}
-  \begin{small}
-    \texttt{\textbackslash setbeamercolor\{footline\}\{fg=#1, bg=#2\}}
-  \end{small}
-  \par
-  \usebeamertemplate{footline}\normalsize
-  \setbeamercolor{footline}{fg=black!75, bg=}
-  \vfill
-}
-
-\newcommand{\footlinetemplatedemo}[1]{
-  \setbeamertemplate{footline}[#1]
-  \begin{small}
-    \texttt{\textbackslash setbeamertemplate\{footline\}[#1]}
-  \end{small}
-  \par
-  \usebeamertemplate{footline}\normalsize
-  \setbeamertemplate{footline}[pageright]
-  \vfill
-}
-
-\begin{frame}[fragile]{Footline}
-  \footlinecolordemo{blue}{}
-  \footlinecolordemo{blue}{black!20}
-  \setbeamercolor{footline}{fg=blue}
-  \footlinetemplatedemo{pageright}
-  \footlinetemplatedemo{pageleft}
-  \begin{small}
-    \texttt{\textbackslash setbeamertemplate\{footline\}[default]}
-  \end{small}
-  \par
-  --- no footline ---
-\end{frame}
-
-\newcommand{\footlineboxdemo}[2]{
-  \setbeamertemplate{footline line}[#1]#2
-  \begin{small}
-    \texttt{\textbackslash setbeamertemplate\{footline line\}[#1]#2}
-  \end{small}
-  \par
-  \usebeamertemplate{footline}\normalsize
-  \setbeamertemplate{footline line}[text][0.5pt]
-  \vfill
-}
-
-\begin{frame}[fragile]{Footline line}
-  \setbeamercolor{footline}{fg=blue}
-  \footlineboxdemo{text}{[0.5pt]}
-  \footlineboxdemo{text}{[3pt]}
-  \footlineboxdemo{page}{[0.5pt]}
-\end{frame}
-
-\newcommand{\footlineseparatordemo}[2]{
-  \setbeamertemplate{footline separator}[#1]#2
-  \begin{small}
-    \texttt{\textbackslash setbeamertemplate\{footline separator\}[#1]#2}
-  \end{small}
-  \par
-  \usebeamertemplate{footline}\normalsize
-  \setbeamertemplate{footline separator}[text][0.5pt]
-  \vfill
-}
-
-\begin{frame}[fragile]{Footline separator}
-  \setbeamercolor{footline}{fg=blue}
-  \footlineseparatordemo{text}{[0.5pt]}
-  \footlineseparatordemo{full}{[0.5pt]}
-  \footlineseparatordemo{full}{[3pt]}
-  \footlineseparatordemo{dash}{}
-  \footlineseparatordemo{space}{}
-\end{frame}
-
-\newcommand{\footlinepagedemo}[1]{
-  \setbeamertemplate{page number in head/foot}[#1]
-  \begin{small}
-    \texttt{\textbackslash setbeamertemplate\{page number in head/foot\}[#1]}
-  \end{small}
-  \par
-  \usebeamertemplate{footline}\normalsize
-  \setbeamertemplate{page number in head/foot}[frames]
-  \vfill
-}
-
-\begin{frame}[fragile]{Footline page numbers}
-  How the page in the footline is displayed can be controlled in the
-  following way:
-  \par\vfill
-  Frame number with slide number:\\
-  \footlinepagedemo{slides}
-  \pause
-  Frame number:\\
-  \footlinepagedemo{frames}
-  \pause
-  Frame number with total number of frames:\\
-  \footlinepagedemo{framestotal}
-\end{frame}
-
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
 \section{Title page}
 
-\begin{frame}[fragile]{Title page templates}
+\begin{frame}[fragile,c]{Title page}
   \begin{block}{Title page frame}
     \verb!\begin{frame}[plain]!\\
     \verb!  \titlepage!\\
     \verb!\end{frame}!
   \end{block}
-  \vspace{2ex}
-  \begin{block}{Flushed left}
-    \verb!\setbeamertemplate{title page}[leftlines]!
-  \end{block}
-  \begin{block}{Centered}
-    \verb!\setbeamertemplate{title page}[centerlines]!
-  \end{block}
-\end{frame}
-
-\begin{frame}[fragile,c]{Title page content}
+  \vfill
   From top to bottom:
   \begin{enumerate}
   \item Logo images with a line below
@@ -932,118 +369,38 @@
   \end{enumerate}
 \end{frame}
 
-\begin{frame}[fragile]{Title page logo}
-  \begin{block}{In preamble --- can be more than a single image!}
-    \verb!\titlelogo{\includegraphics[height=6ex]{ourlogo}}!
-  \end{block}
-  You may separate images with \verb!\hspace{0.1\textwidth}! or \verb!\hfill! commands.
-  \vspace{2ex}
-  \begin{block}{Line below logo}
-    \verb!\setbeamertemplate{title page logo line}[text][0.5pt]!
-    \verb!\setbeamertemplate{title page logo line}[page][3pt]!
-  \end{block}
-  \begin{block}{Color}
-    \verb!\setbeamercolor{title page logo line}{fg=red}!\\
-    Empty foreground color hides line:\\
-    \verb!\setbeamercolor{title page logo line}{fg=}!
-  \end{block}
-\end{frame}
-
-\begin{frame}[fragile]{Title page graphic}
-  \begin{block}{In preamble --- can be more than a single image!}
-    \verb!\titlegraphic{\includegraphics[width=\textwidth]{amazingimage}}!
-  \end{block}
-  You may separate images with \verb!\hspace{0.1\textwidth}! or \verb!\hfill! commands.
-  \vspace{2ex}
-  \begin{block}{Line directly below title graphic}
-    \verb!\setbeamertemplate{title page graphic line}[default][1.5ex]!
-  \end{block}
-  \begin{block}{Color}
-    \verb!\setbeamercolor{title page graphic line}{fg=red}!\\
-    Empty foreground color hides line:\\
-    \verb!\setbeamercolor{title page graphic line}{fg=}!
-  \end{block}
-\end{frame}
-
-\begin{frame}[fragile]{Title page title and subtitle}
-  \begin{block}{In preamble}
+\begin{frame}[fragile]{Title page title, authors, institutions and date}
+  In preamble:
+  \vfill
+  \begin{block}{Title and subtitle}
     \verb!\title{The titel of my talk}!\\
     \verb!\subtitle{and whatever}!\\
   \end{block}
-  \begin{block}{Color/Font}
-    \verb!\setbeamercolor{title}{fg=black}! \verb!\setbeamercolor{subtitle}{fg=black}!
-  \end{block}
-  \begin{block}{Line below title and subtitle}
-    \verb!\setbeamertemplate{title page title line}[default][0.2ex]!
-  \end{block}
-  \begin{block}{Color}
-    \verb!\setbeamercolor{title page title line}{fg=red}!\\
-    Empty foreground color hides line:\\
-    \verb!\setbeamercolor{title page title line}{fg=}!
-  \end{block}
-\end{frame}
-
-\newcommand{\titlepageauthorsdemo}[1]{
-  \setbeamertemplate{title page author and}[#1]
-  \usebeamertemplate{title page author and}
-  \author{Mary Hagedorn\inst{1} \and Walter Heiligenberg\inst{2}}
-  \begin{small}
-    \texttt{\textbackslash setbeamertemplate\{title page author and\}[#1]}
-  \end{small}
-  \par
-  \insertauthor
-  \setbeamertemplate{title page author and}[line]
   \vfill
-}
-
-\begin{frame}[fragile]{Title page authors}
-  \begin{block}{In preamble}
+  \begin{block}{Authors}
     \strut\verb!\author{Mary Hagedorn\inst{1} \and Walter Heiligenberg\inst{2}}!
   \end{block}
-  \titlepageauthorsdemo{space}
-  \titlepageauthorsdemo{comma}
-  \titlepageauthorsdemo{line}
-  \titlepageauthorsdemo{and}
-  \begin{block}{Color/Font}
-    \verb!\setbeamercolor{author}{fg=black}!
-  \end{block}
-\end{frame}
-
-\newcommand{\titlepageinstitutedemo}[1]{
-  \setbeamertemplate{title page institute and}[#1]
-  \usebeamertemplate{title page institute and}
-  \institute{\inst{1}University \and \inst{2}Scripps}
-  \begin{small}
-    \texttt{\textbackslash setbeamertemplate\{title page institute and\}[#1]}
-  \end{small}
-  \par
-  \insertinstitute
-  \setbeamertemplate{title page institute and}[line]
   \vfill
-}
-
-\begin{frame}[fragile]{Title page institutes}
-  \begin{block}{In preamble}
+  \begin{block}{Institute}
     \strut\verb!\institute{\inst{1}University \and \inst{2}Scripps}!
   \end{block}
-  \titlepageinstitutedemo{space}
-  \titlepageinstitutedemo{comma}
-  \titlepageinstitutedemo{line}
-  \begin{block}{Color/Font}
-    \verb!\setbeamercolor{institute}{fg=black}!
+  \begin{block}{Date}
+    \strut\verb!\date[2020]{ICN 2020}!
   \end{block}
 \end{frame}
 
-\begin{frame}[fragile]{Title page date}
-  \begin{block}{In preamble}
-    \strut\verb!\date[2020]{ICN 2020}!
-  \end{block}
-  \begin{block}{Font}
-    \verb!\setbeamerfont{date}{size=\normalsize}!
+\begin{frame}[fragile]{Title page images}
+  Specify them in the preamble --- can be more than a single image:
+  \vfill
+  \begin{block}{Logo}
+    \verb!\titlelogo{\includegraphics[height=6ex]{ourlogo}}!
   \end{block}
-  \begin{block}{Color}
-    Same as for institutes.
+  \vfill
+  \begin{block}{Graphics}
+    \verb!\titlegraphic{\includegraphics[width=\textwidth]{amazingimage}}!
   \end{block}
+  \vfill
+  You may separate images with \verb!\hspace{0.1\textwidth}! or \verb!\hfill! commands.
 \end{frame}
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
@@ -1053,46 +410,38 @@
 
 \frame[plain]{\subsectionpage}
 
-\begin{frame}[fragile]{Section page}
+\begin{frame}[c,fragile]{Section page}
   Section commands between the frames, like
   \begin{block}{}
     \verb!\section{A new section}!
   \end{block}
   automaticallly create a special frame with section number and title.
-
+  \vfill
   \begin{block}{No automatic section pages}
     \verb!\AtBeginSection{}  % in preamble!
   \end{block}
+  \vfill
   \begin{block}{Manual insertion of a section page}
     \verb!\frame[plain]{\sectionpage}!
   \end{block}
-  \begin{block}{Colors/Fonts}
-    \verb!\setbeamercolor{section name}{parent=titlelike}!
-    \verb!\setbeamercolor{section name separator}{parent=section name}!
-    \verb!\setbeamercolor{section title}{parent=titlelike}!
-  \end{block}
 \end{frame}
 
 \subsection{Subsection page}
 
 \frame[plain]{\subsectionpage}
 
-\begin{frame}[fragile]{Subsection pages}
+\begin{frame}[c,fragile]{Subsection pages}
   After a subsection command\\
   \begin{block}{}
     \verb!\subsection{A new subsection}!
   \end{block}
+  \vfill
   you may want to insert a subsection page displaying the current
   section and subsection numbers and titles:
+  \vfill
   \begin{block}{Subsection page}
     \verb!\frame[plain]{\subsectionpage}!
   \end{block}
-  \vfill
-  \begin{block}{Colors/Fonts}
-    \verb!\setbeamercolor{subsection name}{parent=titlelike}!
-    \verb!\setbeamercolor{subsection name separator}{parent=section name}!
-    \verb!\setbeamercolor{subsection title}{parent=titlelike}!
-  \end{block}
 \end{frame}
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
@@ -1126,19 +475,12 @@
   \item section 16.3 ``Changing the Templates Used for Different Elements of a Presentation''
   \end{itemize}
   \vfill
-  You find a nice summary of common beamer template/color/font names in the
-  \begin{block}{Beamer appearance cheat sheet}
-    \url{http://www.cpt.univ-mrs.fr/~masson/latex/Beamer-appearance-cheat-sheet.pdf}
-  \end{block}
-  \vfill
-  For specific option, simply look into the style file
-  \begin{block}{}
-    \url{beamerthemelines.sty}
-  \end{block}
-  and the aptero color theme file
+  See the
   \begin{block}{}
-    \url{beamercolorthemeaptero.sty}
+    lines-manual.pdf
   \end{block}
+  for further infos on how to adapt the templates introduced by the
+  \structure{lines} theme.
 \end{frame}
 
 \end{document}
diff --git a/lines-manual.tex b/lines-manual.tex
new file mode 100644
index 0000000..562794a
--- /dev/null
+++ b/lines-manual.tex
@@ -0,0 +1,1146 @@
+\documentclass[10pt,aspectratio=169,t]{beamer}
+\usetheme[author,institute,date,title,page,hidelogo]{lines}
+\usecolortheme{aptero}
+
+\title[Lines beamer theme]{Lines}
+\subtitle{a line-based theme for beamer}
+\author[Benda]{Jan Benda}
+\institute[T\"ubingen]{Neuroethology, University of T\"ubingen}
+\date[2021]{March 2021}
+
+\setbeamerfont{block body}{size=\small}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\begin{document}
+
+\begin{frame}[plain]
+  \titlepage
+\end{frame}
+
+\begin{frame}[fragile]{Lines theme}
+  \begin{block}{Include}
+      \verb!\documentclass[aspectratio=169,t]{beamer}!\\
+      \verb!\usetheme[author,date,title,page,hidelogo]{lines}!
+  \end{block}
+  \vspace{2ex}
+  Options select content of footline and position of logo\\
+  (default is \texttt{[author,page]}):
+  \begin{itemize}
+  \item \texttt{author} / \texttt{hideauthor}
+  \item \texttt{institute} / \texttt{hideinstitute}
+  \item \texttt{date} / \texttt{hidedate}
+  \item \texttt{title} / \texttt{hidetitle}
+  \item \texttt{page} / \texttt{hidepage}
+  \item \texttt{logofootleft} / \texttt{logofootright} / \texttt{logotitleleft} / \texttt{logotitleright} / \texttt{hidelogo}
+  \end{itemize}
+\end{frame}
+
+\begin{frame}[c]{Files}
+  \vspace{1ex}
+  \begin{tabular}{@{}ll}
+    \texttt{beamerthemelines.sty} & \structure{lines} beamer theme. \\[2ex]
+    \texttt{beamercolorthemeaptero.sty} & Provides muted colors for beamer.
+  \end{tabular}
+  \vfill
+  \begin{itemize}
+    \setlength{\itemsep}{2ex}
+  \item Either copy these files into the directory of your presentation,
+  \item install them into your home directory:\\
+    \texttt{> make install} \\
+  \item or install them system wide:\\
+    \texttt{> sudo make install}
+  \end{itemize}
+\end{frame}
+
+\begin{frame}[fragile]{Content}
+  \begin{minipage}[t]{0.3\textwidth}
+    \hypersetup{linkcolor=blue}  % color of section names
+    \tableofcontents[hideallsubsections]
+  \end{minipage}
+  \hfill
+  \begin{minipage}[t]{0.68\textwidth}
+    \begin{block}{Table of contents}
+      \verb!\begin{frame}{Content}!\\
+      \verb!  \hypersetup{linkcolor=blue}       % color for section names!\\
+      \verb!  \tableofcontents[hideallsubsections]!\\
+      \verb!\end{frame}!
+    \end{block}
+    \begin{block}{Templates and colors}
+      \verb!\setbeamertemplate{section in toc}[sections numbered]!\\
+      \verb!\setbeamertemplate{subsection in toc}[sections numbered]!\\
+      \verb!\setbeamercolor{section in toc}{fg=black}  % color of numbers!\\
+      \verb!\setbeamercolor{subsection in toc}{fg=black}!
+    \end{block}
+  \end{minipage}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
+\section{Frames}
+
+\begin{frame}[fragile]{Beamer frames}
+  \begin{block}{Frame environment with title}
+    \verb!\begin{frame}{The title of my slide}!\\
+    \verb!  Some content.!\\
+    \verb!\end{frame}!
+  \end{block}
+  \begin{block}{Alternative specification of frame title}
+    \verb!\begin{frame}!\\
+    \verb!  \frametitle{The title of my slide}!\\
+    \verb!  Some content.!\\
+    \verb!\end{frame}!
+  \end{block}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
+\begin{frame}[fragile]{Frame title}
+  \begin{block}{Title with logo}
+    \verb!\setbeamertemplate{frametitle}[boxlinelogo]!
+  \end{block}
+  \begin{block}{Title without logo}
+    \verb!\setbeamertemplate{frametitle}[boxline]!
+  \end{block}
+  \begin{block}{Color/Font}
+    \verb!\setbeamercolor{frametitle}{fg=blue, bg=white}!\\
+    \verb!\setbeamerfont{frametitle}{size=\LARGE}!
+  \end{block}
+\end{frame}
+
+\begin{frame}[fragile]{Frame title line}
+  \begin{block}{Thin line respecting page margins}
+    \verb!\setbeamertemplate{frametitle line}[text][0.5pt]!
+  \end{block}
+  \begin{block}{Thick line}
+    \verb!\setbeamertemplate{frametitle line}[text][3pt]!
+  \end{block}
+  \begin{block}{Line over full page}
+    \verb!\setbeamertemplate{frametitle line}[page][1pt]!
+  \end{block}
+  \begin{block}{Color}
+    \verb!\setbeamercolor{frametitle line}{fg=blue}!\\
+    An empty foreground color hides the line:\\
+    \verb!\setbeamercolor{frametitle line}{fg=}!
+  \end{block}
+\end{frame}
+
+\begin{frame}[fragile]{Frame subtitle}
+  \framesubtitle{Here we have a subtitle}
+  \begin{block}{Frame environment with subtitle}
+    \verb!\begin{frame}!\\
+    \verb!  \frametitle{The title of my slide}!\\
+    \verb!  \framesubtitle{This is a subtitle}!\\
+    \verb!  Some content.!\\
+    \verb!\end{frame}!
+  \end{block}
+  \begin{alertblock}{Try to avoid subtitles!}
+    Keep the messages on your slides simple and clean.
+  \end{alertblock}
+  \begin{block}{Color/Font}
+    \verb!\setbeamercolor{framesubtitle}{fg=blue}!\\
+    \verb!\setbeamerfont{framesubtitle}{size=\large}!
+  \end{block}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
+\begin{frame}[fragile]{Itemize and enumerate}
+  \vfill
+  \begin{minipage}[t]{0.3\textwidth}
+    \vspace{-3ex}
+    \begin{block}{Itemize with overlays}
+      \verb!\begin{itemize}!\\
+        \verb!\item Apple!\\
+        \verb!\item<2-> Orange!\\
+        \verb!\item<2-> Lemon!\\
+        \verb!\item<3-> Banana!\\
+        \verb!\end{itemize}!
+    \end{block}
+    \begin{itemize}
+    \item Apple
+    \item<2-> Orange
+    \item<2-> Lemon
+    \item<3-> Banana
+    \end{itemize}
+  \end{minipage}
+  \hfill
+  \begin{minipage}[t]{0.25\textwidth}
+    \vspace{-3ex}
+    \begin{block}{Enumerate}
+      \verb!\begin{enumerate}!\\
+        \verb!\item<2-> Apple!\\
+        \verb!\item<1-> Orange!\\
+        \verb!\item<2> Lemon!\\
+        \verb!\item<3-> Banana!\\
+        \verb!\end{enumerate}!
+    \end{block}
+    \begin{enumerate}
+    \item<2-> Apple
+    \item<1-> Orange
+    \item<2> Lemon
+    \item<3-> Banana
+    \end{enumerate}
+  \end{minipage}
+  \hfill
+  \begin{minipage}[t]{0.37\textwidth}
+    \vspace{-3ex}
+    \begin{block}{Cover transparency}
+      \verb!\setbeamercovered{transparent=50}!\\
+      \verb!\begin{enumerate}!\\
+        \verb!\item<1> Apple!\\
+        \verb!\item<2-> Orange!\\
+        \verb!\item<3> Lemon!\\
+        \verb!\end{enumerate}!
+    \end{block}
+    \setbeamercovered{transparent=50}
+    \begin{enumerate}
+    \item<1> Apple
+    \item<2-> Orange
+    \item<3> Lemon
+    \end{enumerate}
+    \setbeamercovered{invisible}
+  \end{minipage}
+\end{frame}
+
+\newcommand{\itemizesymboldemo}[1]{
+  \begin{minipage}[t]{0.17\textwidth}
+    \setbeamertemplate{itemize item}[#1]
+    \texttt{#1}:
+    \begin{itemize}
+    \item Apple
+    \item Orange
+    \item Banana
+    \end{itemize}
+  \end{minipage}
+  \setbeamertemplate{itemize item}[arrow]
+}
+
+\begin{frame}[fragile]{Itemize symbols}
+  \begin{block}{Itemize item}
+    \verb!\setbeamertemplate{itemize item}[arrow]!\\
+    \verb!\setbeamertemplate{itemize subitem}[dash]!\\
+    \verb!\setbeamercolor{itemize item}{fg=black}!
+  \end{block}
+  \vfill
+  \itemizesymboldemo{default}
+  \itemizesymboldemo{triangle}
+  \itemizesymboldemo{square}
+  \itemizesymboldemo{circle}
+  \itemizesymboldemo{ball}
+
+  \vfill\vfill
+  \itemizesymboldemo{arrow}
+  \itemizesymboldemo{filledarrow}
+  \itemizesymboldemo{dash}
+  \itemizesymboldemo{check}
+  \itemizesymboldemo{uncheck}
+\end{frame}
+
+\newcommand{\enumeratedemo}{
+  \begin{enumerate}
+  \item Apple
+  \item Orange
+  \item Banana
+  \end{enumerate}
+}
+
+\newcommand{\enumeratesymboldemo}[1]{
+  \begin{minipage}[t]{0.17\textwidth}
+    \setbeamertemplate{enumerate item}[#1]
+    \texttt{#1}:
+    \enumeratedemo
+  \end{minipage}
+  \setbeamertemplate{enumerate item}[default]
+}
+
+\begin{frame}[fragile]{Enumerate symbols}
+  \begin{block}{Enumerate item}
+    \verb!\setbeamertemplate{enumerate item}[arabic]!\\
+    \verb!\setbeamertemplate{enumerate subitem}[alph]!\\
+    \verb!\setbeamercolor{enumerate item}{fg=black}!
+  \end{block}
+  \vfill
+  \enumeratesymboldemo{default}
+  \enumeratesymboldemo{square}
+  \enumeratesymboldemo{circle}
+  \enumeratesymboldemo{ball}
+
+  \vfill\vfill
+  \enumeratesymboldemo{alph}
+  \enumeratesymboldemo{Alph}
+  \enumeratesymboldemo{arabic}
+  \enumeratesymboldemo{roman}
+  \enumeratesymboldemo{Roman}
+\end{frame}
+
+\begin{frame}[fragile]{Custom enumerate symbols}
+  \begin{block}{Alph within brackets}
+    \verb!\setbeamertemplate{enumerate item}{(\alph{enumi})}!
+  \end{block}
+  \setbeamertemplate{enumerate item}{(\alph{enumi})}
+  \enumeratedemo
+  \begin{block}{Arabic with closing bracket}
+    \verb!\setbeamertemplate{enumerate item}{\arabic{enumi})}!
+  \end{block}
+  \setbeamertemplate{enumerate item}{\arabic{enumi})}
+  \enumeratedemo
+  \setbeamertemplate{enumerate item}[arabic]
+\end{frame}
+
+\begin{frame}[fragile]{Nested itemize and enumerate}
+  \begin{minipage}[t]{0.45\textwidth}
+    \vspace{-3ex}
+    \begin{block}{Itemize}
+      \verb!\begin{itemize}!\\
+      \verb!\item Apple!\\
+      \verb!  \begin{itemize}!\\
+      \verb!  \item Red!\\
+      \verb!  \item Green!\\
+      \verb!  \end{itemize}!\\
+      \verb!\item Banana!\\
+      \verb!\end{itemize}!
+    \end{block}
+    \begin{itemize}
+    \item Apple
+      \begin{itemize}
+      \item Red
+      \item Green
+      \end{itemize}
+    \item Banana
+    \end{itemize}
+  \end{minipage}
+  \hfill
+  \begin{minipage}[t]{0.45\textwidth}
+    \vspace{-3ex}
+    \begin{block}{Enumerate}
+      \verb!\begin{enumerate}!\\
+      \verb!\item Apple!\\
+      \verb!  \begin{enumerate}!\\
+      \verb!  \item Red!\\
+      \verb!  \item Green!\\
+      \verb!  \end{enumerate}!\\
+      \verb!\item Banana!\\
+      \verb!\end{enumerate}!
+    \end{block}
+    \begin{enumerate}
+    \item Apple
+      \begin{enumerate}
+      \item Red
+      \item Green
+      \end{enumerate}
+    \item Banana
+    \end{enumerate}
+  \end{minipage}
+\end{frame}
+
+\begin{frame}[fragile]{Itemize with action items}
+  \begin{minipage}[t]{0.45\textwidth}
+    \vspace{-2ex}
+    \begin{block}{Itemize}
+      \verb!\begin{itemize}!\\
+        \verb!\item[\itemfilledarrow] Apple!\\
+        \verb!\item<2-| alert@3> Orange!\\
+        \verb!\item<2-| emph@2| uncheck@3-> Lemon!\\
+        \verb!\item<3-| emph@1-> Banana!\\
+        \verb!\item<3-| check@4> Mango!\\
+        \verb!\item<4-| message@1-> Cherries!\\
+        \verb!\item<4-> Grapes!\\
+        \verb!\end{itemize}!
+    \end{block}
+  \end{minipage}
+  \hfill
+  \begin{minipage}[t]{0.45\textwidth}
+    \begin{itemize}
+    \item[\itemfilledarrow] Apple
+    \item<2-| alert@3> Orange
+    \item<2-| emph@2| uncheck@3-> Lemon
+    \item<3-| emph@1-> Banana
+    \item<3-| check@4> Mango
+    \item<4-| message@1-> Cherries
+    \item<4-> Grapes
+    \end{itemize}
+  \end{minipage}
+  \begin{block}{Colors and fonts for message items}
+    \verb!\setbeamercolor{message item}{fg=red}!\\
+    \verb!\setbeamercolor{message item symbol}{fg=red}!\\
+    \verb!\setbeamerfont{message item}{size=\large}!
+  \end{block}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
+\begin{frame}[fragile]{Alert and structure}
+  \vfill
+  The \verb!\alert{}! command \alert{emphasizes} text.
+
+  \vfill
+  Structural \structure{emphasis} is provided by the \verb!\structure{}! command.
+
+  \vfill
+  \begin{block}{Colors/Fonts}
+    \verb!\setbeamercolor{alerted text}{fg=red}!\\
+    \verb!\setbeamercolor{structure}{fg=blue}!
+  \end{block}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
+\begin{frame}[fragile]{Block environments with title}
+  ... add structure and color to a slide --- use them with care:
+  \begin{block}{Some block}
+    Block with title and content\\
+    \verb!\begin{block}{Some block}!\\
+    \verb!  Block with title and content!\\
+    \verb!\end{block}!
+  \end{block}
+  \begin{alertblock}{Careful!}
+    \texttt{alertblock} environment with title as argument.
+  \end{alertblock}
+  \begin{exampleblock}{Example}
+    \texttt{exampleblock} environment with title as argument.
+  \end{exampleblock}
+\end{frame}
+
+\begin{frame}[fragile]{Block environments without title}
+  ... add color to a slide in a more subtle way:
+  \begin{block}{}
+    Block with empty title.\\
+    \verb!\begin{block}{}!\\
+    \verb!  Block with empty title!\\
+    \verb!\end{block}!
+  \end{block}
+  \begin{alertblock}{}
+    \texttt{alertblock} with empty title.\\
+    And just some text.
+  \end{alertblock}
+  \begin{exampleblock}{}
+    \texttt{exampleblock} with empty title.\\
+    And just some text.
+  \end{exampleblock}
+\end{frame}
+
+\newcommand{\blockdemo}{
+  \begin{block}{Some block}
+    Block with title and content.
+  \end{block}
+}
+
+\newcommand{\blockthemedemo}[2]{
+  \vspace{-1ex}
+  \setbeamertemplate{block begin}[#1]#2#2
+  \setbeamertemplate{block end}[#1]#2
+  \blockdemo
+  \setbeamertemplate{block begin}[lines]{0.5pt}{0.5pt}
+  \setbeamertemplate{block end}[lines]{0.5pt}
+}
+
+\begin{frame}[fragile]{Themes for block environments with title}
+  The box of the \texttt{default} theme extends beyond \verb!\textwidth! and the title box
+  is wider than the body box:\\
+  \begin{small}
+    \verb!\setbeamertemplate{block begin}[default]!
+    \verb!\setbeamertemplate{block end}[default]!
+  \end{small}
+  \blockthemedemo{default}{}
+  \vfill
+  The box of the \texttt{rounded} theme also extends beyond \verb!\textwidth!:\\
+  \begin{small}
+    \verb!\setbeamertemplate{block begin}[rounded]!
+    \verb!\setbeamertemplate{block end}[rounded]!
+  \end{small}
+  \blockthemedemo{rounded}{}
+  \vfill
+  The box of the \texttt{lines} theme is as wide as \verb!\textwidth!
+  and the title box always has the same height:\\
+  \begin{small}
+    \verb!\setbeamertemplate{block begin}[lines]{0pt}{0pt}!
+    \verb!\setbeamertemplate{block end}[lines]{0pt}!
+  \end{small}
+  \blockthemedemo{lines}{{0pt}}
+\end{frame}
+
+\renewcommand{\blockthemedemo}[2]{
+  \vspace{-1ex}
+  \setbeamertemplate{block begin}[#1]#2#2
+  \setbeamertemplate{block end}[#1]#2
+  \begin{block}{}
+    Block without title.
+  \end{block}
+  \setbeamertemplate{block begin}[lines]{0.5pt}{0.5pt}
+  \setbeamertemplate{block end}[lines]{0.5pt}
+}
+
+\begin{frame}[fragile]{Themes for block environments without title}
+  The \texttt{default} theme still shows a title box:\\
+  \begin{small}
+    \verb!\setbeamertemplate{block begin}[default]!
+    \verb!\setbeamertemplate{block end}[default]!
+  \end{small}
+  \blockthemedemo{default}{}
+  \vfill
+  The \texttt{rounded} theme works as expected:\\
+  \begin{small}
+    \verb!\setbeamertemplate{block begin}[rounded]!
+    \verb!\setbeamertemplate{block end}[rounded]!
+  \end{small}
+  \blockthemedemo{rounded}{}
+  \vfill
+  The \texttt{lines} theme works as expected and stays within \verb!\textwidth!:\\
+  \begin{small}
+    \verb!\setbeamertemplate{block begin}[lines]{0pt}{0pt}!
+    \verb!\setbeamertemplate{block end}[lines]{0pt}!
+  \end{small}
+  \blockthemedemo{lines}{{0pt}}
+\end{frame}
+
+\newcommand{\blockcolordemo}[4]{
+  \setbeamertemplate{block begin}[lines]{0pt}{0pt}
+  \setbeamertemplate{block end}[lines]{0pt}
+  \setbeamercolor{block title}{fg=#1, bg=#2}
+  \setbeamercolor{block body}{fg=#3, bg=#4}
+  \begin{small}
+    \texttt{\textbackslash setbeamercolor\{block title\}\{fg=#1, bg=#2\}}\\
+    \texttt{\textbackslash setbeamercolor\{block body\}\{fg=#3, bg=#4\}}\\
+  \end{small}
+  \blockdemo
+  \setbeamertemplate{block begin}[lines]{0.5pt}{0.5pt}
+  \setbeamertemplate{block end}[lines]{0.5pt}
+  \setbeamercolor{block title}{fg=white, bg=blue}
+  \setbeamercolor{block body}{fg=normal text.fg, bg=black!15}
+}
+
+\begin{frame}[fragile]{Colors for block environments}
+  \blockcolordemo{white}{red}{blue}{blue!20}
+  \vfill
+  \blockcolordemo{}{}{}{}
+  \vfill
+  \blockcolordemo{black}{white}{black}{white}
+\end{frame}
+
+\newcommand{\blockfontdemo}[2]{
+  \setbeamertemplate{block begin}[lines]{0pt}{0pt}
+  \setbeamertemplate{block end}[lines]{0pt}
+  \begin{small}
+    \texttt{\textbackslash setbeamerfont\{block title\}\{size=\textbackslash #1\}}\\
+    \texttt{\textbackslash setbeamerfont\{block body\}\{size=\textbackslash #2\}}\\
+  \end{small}
+  \blockdemo
+  \setbeamertemplate{block begin}[lines]{0.5pt}{0.5pt}
+  \setbeamertemplate{block end}[lines]{0.5pt}
+  \setbeamerfont{block title}{parent=normal text}
+  \setbeamerfont{block body}{parent=normal text}
+}
+
+\begin{frame}[fragile]{Fonts for block environments}
+  \setbeamerfont{block title}{size=\LARGE}
+  \setbeamerfont{block body}{size=\normalsize}
+  \blockfontdemo{Large}{normalsize}
+  \vfill
+  \setbeamerfont{block title}{size=\normalsize}
+  \setbeamerfont{block body}{size=\tiny}
+  \blockfontdemo{normalsize}{tiny}
+\end{frame}
+
+\newcommand{\blocklinedemo}[3]{
+  \setbeamertemplate{block begin}[lines]{2pt}{2pt}
+  \setbeamertemplate{block end}[lines]{2pt}
+  \setbeamercolor{block line top}{fg=#1}
+  \setbeamercolor{block line middle}{fg=#2}
+  \setbeamercolor{block line bottom}{fg=#3}
+  \begin{small}
+    \texttt{\textbackslash setbeamercolor\{block line top\}\{fg=#1\}}\\
+    \texttt{\textbackslash setbeamercolor\{block line middle\}\{fg=#2\}}\\
+    \texttt{\textbackslash setbeamercolor\{block line bottom\}\{fg=#3\}}
+  \end{small}
+  \blockdemo
+  \setbeamertemplate{block begin}[lines]{0.5pt}{0.5pt}
+  \setbeamertemplate{block end}[lines]{0.5pt}
+  \setbeamercolor{block line top}{fg=}
+  \setbeamercolor{block line middle}{fg=}
+  \setbeamercolor{block line bottom}{fg=blue}
+}
+
+\begin{frame}[fragile]{Lines for block environments}
+  \blocklinedemo{blue!80!black}{white}{blue!50}
+  \vfill
+  \blocklinedemo{}{blue!50}{}
+  \vfill
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
+\begin{frame}{Theorems --- for mathematicians}
+  \begin{theorem}
+    \texttt{theorem} environment.
+  \end{theorem}
+  \begin{definition}
+    \texttt{definition} environment.\\[1ex]
+    All theorem environments get the same color and font:
+    \begin{itemize}
+    \item \texttt{theorem title}
+    \item \texttt{theorem body}
+    \item \texttt{theorem line top/middle/bottom}
+    \end{itemize}
+  \end{definition}
+  %\begin{example}
+  %  \texttt{example} environment.
+  %\end{example}
+  \begin{proof}
+    \texttt{proof} environment.\\
+    Same colors and fonts as the \texttt{block} environment.
+  \end{proof}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
+\begin{frame}[fragile]{Message box}
+  \begin{block}{A new (non-beamer) command for highlighting messages}
+    \verb!\messagebox{Take home message}!
+  \end{block}
+  \vfill
+  \messagebox{Take home message}
+  \vfill
+  Use it!
+  \vfill
+  \begin{block}{Colors/Fonts/Template}
+    \verb!\setbeamertemplate{message}[lines]{1pt}{1pt} % width top/bottom line!\\
+    \verb!\setbeamercolor{message}{fg=white, bg=red}!\\
+    \verb!\setbeamercolor{message line top}{fg=}!\\
+    \verb!\setbeamercolor{message line bottom}{fg=}!\\
+    \verb!\setbeamertemplate{message symbol}[circle]   % default, circle, arrow!\\
+    \verb!\setbeamercolor{message symbol}{fg=white}!
+  \end{block}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
+\begin{frame}[fragile]{Quotations}
+  Quote something of somebody with indentation:
+  \begin{quotation}[Me And Myself]
+    A \verb!quotation! environment. There is a lot to talk about and
+    it really takes a lot of words to express this. Most likely this
+    does not fit into a single line. We might even need yet another
+    full new line.
+    
+    Here we even start a second paragraph.
+  \end{quotation}
+  \vfill
+  Quote something short of somebody else without indentation:
+  \begin{quote}[Me And Myself]
+    A \verb!quote! environment. There is less to talk about and it
+    just takes a few words to express this. A second line is not
+    really needed.
+  \end{quote}
+  \vfill
+  Here is a poem:
+  \begin{verse}
+    A \verb!verse! environment ---\\with a second line.
+  \end{verse}
+\end{frame}
+
+\newcommand{\quotedemo}{
+  \begin{quote}[Hamlet]
+    To be, or not to be.
+  \end{quote}
+  \vfill
+}
+
+\newcommand{\quotesymboldemo}[2]{
+  \setbeamertemplate{quote symbol}[#1]#2
+  \begin{small}
+    \texttt{\textbackslash setbeamertemplate\{quote symbol\}[#1]#2}
+  \end{small}
+  \quotedemo
+  \setbeamertemplate{quote symbol}[opendblquote]
+}
+
+\begin{frame}[fragile]{Quote symbol settings}
+  \quotesymboldemo{default}{}
+  \quotesymboldemo{closequote}{}
+  \quotesymboldemo{openquote}{}
+  \quotesymboldemo{closedblquote}{}
+  \quotesymboldemo{opendblquote}{}
+  \quotesymboldemo{opendblquote}{[2]}
+\end{frame}
+
+\newcommand{\quotesymbolfontdemo}[1]{
+  \setbeamerfont{quote symbol}{family*=#1}
+  \begin{small}
+    \texttt{\textbackslash setbeamerfont\{quote symbol\}\{family*=#1\}}
+  \end{small}
+  \quotedemo
+  \setbeamerfont{quote symbol}{family*=pbk}
+}
+
+\begin{frame}[fragile]{Font settings for quote symbol}
+  \quotesymbolfontdemo{pbk}
+  \quotesymbolfontdemo{pnc}
+  \quotesymbolfontdemo{qcs}
+  \quotesymbolfontdemo{phv}
+\end{frame}
+
+\newcommand{\quotesourcedemo}[1]{
+  \setbeamertemplate{quote source}[#1]
+  \begin{small}
+    \texttt{\textbackslash setbeamertemplate\{quote source\}[#1]}
+  \end{small}
+  \quotedemo
+  \setbeamertemplate{quote source}[rightline]
+}
+
+\begin{frame}[fragile]{Source settings for quote and quotation environments}
+  Do not print the source:\\
+  \quotesourcedemo{default}
+  Left aligned in a new line:\\
+  \quotesourcedemo{left}
+  \quotesourcedemo{leftbrackets}
+  \begin{alertblock}{}
+    In the template names, replace \texttt{quote} by
+    \texttt{quotation} to apply the same changes to the
+    \texttt{quotation} environment.
+  \end{alertblock}
+\end{frame}
+
+\begin{frame}[fragile]{Source settings for quote and quotation environments}
+  Right aligned in a separate line:
+  \vfill
+  \quotesourcedemo{right}
+  \quotesourcedemo{rightbrackets}
+  \quotesourcedemo{dashright}
+  \quotesourcedemo{tilderight}
+\end{frame}
+
+\begin{frame}[fragile]{Source settings for quote and quotation environments}
+  Right aligned within the last line if possible:
+  \vfill
+  \quotesourcedemo{rightline}
+  \quotesourcedemo{rightlinebrackets}
+  \quotesourcedemo{dashrightline}
+  \quotesourcedemo{tilderightline}
+  In case the last line is too long, the source is printed on the next line:
+  \begin{quote}[Hamlet by William Shakespeare]
+    To be, or not to be, that is the question:
+    Whether 'tis nobler in the mind to suffer ...
+  \end{quote}
+\end{frame}
+
+\newcommand{\quotecolordemo}[2]{
+  \setbeamercolor{quote line top}{fg=#1}
+  \setbeamercolor{quote line bottom}{fg=#2}
+  \begin{small}
+    \texttt{\textbackslash setbeamercolor\{quote line top\}\{fg=#1\}}\\
+    \texttt{\textbackslash setbeamercolor\{quote line bottom\}\{fg=#2\}}
+  \end{small}
+  \quotedemo
+}
+
+\begin{frame}[fragile]{Line settings for quote and quotation environments}
+  \setbeamertemplate{quote begin}[lines][2pt]
+  \setbeamertemplate{quote end}[lines][2pt]
+  \begin{small}
+    \verb!\setbeamertemplate{quote begin}[lines][2pt]!
+    \verb!\setbeamertemplate{quote end}[lines][2pt]!
+  \end{small}
+  \vfill
+  \quotecolordemo{}{}
+  \quotecolordemo{blue}{}
+  \quotecolordemo{}{blue}
+  \quotecolordemo{red}{blue}
+\end{frame}
+\setbeamertemplate{quote begin}[lines][0.5pt]
+\setbeamertemplate{quote end}[lines][0.5pt]
+\setbeamercolor{quote line top}{fg=}
+\setbeamercolor{quote line bottom}{fg=}
+
+\newcommand{\quoteboxdemo}[2]{
+  \setbeamercolor{quote}{fg=#1, bg=#2}
+  \begin{small}
+    \texttt{\textbackslash setbeamercolor\{quote\}\{fg=#1, bg=#2\}}\\
+  \end{small}
+  \quotedemo
+  \setbeamercolor{quote}{fg=normal text.fg, bg=black!15}
+}
+
+\begin{frame}[fragile]{Colors and fonts for quote and quotation environments}
+  \setbeamerfont{quote}{shape=\upshape}
+  {\small \verb!\setbeamerfont{quote}{shape=\upshape}!\\}
+  \quotedemo
+  \setbeamerfont{quote}{size=\normalsize, shape=\slshape}
+  \quoteboxdemo{blue}{}
+  \quoteboxdemo{red}{black!15}
+  \setbeamercolor{quote symbol}{fg=green}
+  {\small \verb!\setbeamercolor{quote symbol}{fg=green}!\\}
+  \quotedemo
+  \setbeamercolor{quote symbol}{fg=red}
+  \setbeamercolor{quote source}{fg=blue}
+  {\small \verb!\setbeamercolor{quote source}{fg=blue}!\\}
+  \quotedemo
+  \setbeamercolor{quote source}{fg=}
+  \setbeamerfont{quote source}{size=\footnotesize, shape=\itshape}
+  {\small \verb!\setbeamerfont{quote source}{size=\footnotesize, shape=\itshape}!\\}
+  \quotedemo
+  \setbeamercolor{quote source}{fg=}
+  \setbeamerfont{quote source}{size=\normalsize}
+\end{frame}
+ 
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
+\newcommand{\colorpatch}[1]{%
+  \parbox{10ex}{\centerline{\strut#1}\textcolor{#1}{\rule{10ex}{10ex}}}
+  \quad}
+
+\begin{frame}{Colors of the aptero theme}
+  \vspace{1ex}
+  \colorpatch{red}
+  \colorpatch{orange}
+  \colorpatch{yellow}
+  \colorpatch{lightgreen}
+  \colorpatch{green}
+
+  \vspace{1ex}
+  \colorpatch{darkgreen}
+  \colorpatch{cyan}
+  \colorpatch{lightblue}
+  \colorpatch{blue}
+  \colorpatch{purple}
+
+  \vspace{1ex}
+  \colorpatch{magenta}
+  \colorpatch{pink}
+  \colorpatch{white}
+  \colorpatch{gray}
+  \colorpatch{black}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
+\newcommand{\footlinecolordemo}[2]{
+  \setbeamercolor{footline}{fg=#1, bg=#2}
+  \begin{small}
+    \texttt{\textbackslash setbeamercolor\{footline\}\{fg=#1, bg=#2\}}
+  \end{small}
+  \par
+  \usebeamertemplate{footline}\normalsize
+  \setbeamercolor{footline}{fg=black!75, bg=}
+  \vfill
+}
+
+\newcommand{\footlinetemplatedemo}[1]{
+  \setbeamertemplate{footline}[#1]
+  \begin{small}
+    \texttt{\textbackslash setbeamertemplate\{footline\}[#1]}
+  \end{small}
+  \par
+  \usebeamertemplate{footline}\normalsize
+  \setbeamertemplate{footline}[pageright]
+  \vfill
+}
+
+\begin{frame}[fragile]{Footline}
+  \footlinecolordemo{blue}{}
+  \footlinecolordemo{blue}{black!20}
+  \setbeamercolor{footline}{fg=blue}
+  \footlinetemplatedemo{pageright}
+  \footlinetemplatedemo{pageleft}
+  \begin{small}
+    \texttt{\textbackslash setbeamertemplate\{footline\}[default]}
+  \end{small}
+  \par
+  --- no footline ---
+\end{frame}
+
+\newcommand{\footlineboxdemo}[2]{
+  \setbeamertemplate{footline line}[#1]#2
+  \begin{small}
+    \texttt{\textbackslash setbeamertemplate\{footline line\}[#1]#2}
+  \end{small}
+  \par
+  \usebeamertemplate{footline}\normalsize
+  \setbeamertemplate{footline line}[text][0.5pt]
+  \vfill
+}
+
+\begin{frame}[fragile]{Footline line}
+  \setbeamercolor{footline}{fg=blue}
+  \footlineboxdemo{text}{[0.5pt]}
+  \footlineboxdemo{text}{[3pt]}
+  \footlineboxdemo{page}{[0.5pt]}
+\end{frame}
+
+\newcommand{\footlineseparatordemo}[2]{
+  \setbeamertemplate{footline separator}[#1]#2
+  \begin{small}
+    \texttt{\textbackslash setbeamertemplate\{footline separator\}[#1]#2}
+  \end{small}
+  \par
+  \usebeamertemplate{footline}\normalsize
+  \setbeamertemplate{footline separator}[text][0.5pt]
+  \vfill
+}
+
+\begin{frame}[fragile]{Footline separator}
+  \setbeamercolor{footline}{fg=blue}
+  \footlineseparatordemo{text}{[0.5pt]}
+  \footlineseparatordemo{full}{[0.5pt]}
+  \footlineseparatordemo{full}{[3pt]}
+  \footlineseparatordemo{dash}{}
+  \footlineseparatordemo{space}{}
+\end{frame}
+
+\newcommand{\footlinepagedemo}[1]{
+  \setbeamertemplate{page number in head/foot}[#1]
+  \begin{small}
+    \texttt{\textbackslash setbeamertemplate\{page number in head/foot\}[#1]}
+  \end{small}
+  \par
+  \usebeamertemplate{footline}\normalsize
+  \setbeamertemplate{page number in head/foot}[frames]
+  \vfill
+}
+
+\begin{frame}[fragile]{Footline page numbers}
+  How the page in the footline is displayed can be controlled in the
+  following way:
+  \par\vfill
+  Frame number with slide number:\\
+  \footlinepagedemo{slides}
+  \pause
+  Frame number:\\
+  \footlinepagedemo{frames}
+  \pause
+  Frame number with total number of frames:\\
+  \footlinepagedemo{framestotal}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
+\section{Title page}
+
+\begin{frame}[fragile]{Title page templates}
+  \begin{block}{Title page frame}
+    \verb!\begin{frame}[plain]!\\
+    \verb!  \titlepage!\\
+    \verb!\end{frame}!
+  \end{block}
+  \vspace{2ex}
+  \begin{block}{Flushed left}
+    \verb!\setbeamertemplate{title page}[leftlines]!
+  \end{block}
+  \begin{block}{Centered}
+    \verb!\setbeamertemplate{title page}[centerlines]!
+  \end{block}
+\end{frame}
+
+\begin{frame}[fragile,c]{Title page content}
+  From top to bottom:
+  \begin{enumerate}
+  \item Logo images with a line below
+  \item Title graphic images with a line directly below
+  \item Title and subtitle with a line below
+  \item Authors
+  \item Institutions and date
+  \end{enumerate}
+\end{frame}
+
+\begin{frame}[fragile]{Title page logo}
+  \begin{block}{In preamble --- can be more than a single image!}
+    \verb!\titlelogo{\includegraphics[height=6ex]{ourlogo}}!
+  \end{block}
+  You may separate images with \verb!\hspace{0.1\textwidth}! or \verb!\hfill! commands.
+  \vspace{2ex}
+  \begin{block}{Line below logo}
+    \verb!\setbeamertemplate{title page logo line}[text][0.5pt]!
+    \verb!\setbeamertemplate{title page logo line}[page][3pt]!
+  \end{block}
+  \begin{block}{Color}
+    \verb!\setbeamercolor{title page logo line}{fg=red}!\\
+    Empty foreground color hides line:\\
+    \verb!\setbeamercolor{title page logo line}{fg=}!
+  \end{block}
+\end{frame}
+
+\begin{frame}[fragile]{Title page graphic}
+  \begin{block}{In preamble --- can be more than a single image!}
+    \verb!\titlegraphic{\includegraphics[width=\textwidth]{amazingimage}}!
+  \end{block}
+  You may separate images with \verb!\hspace{0.1\textwidth}! or \verb!\hfill! commands.
+  \vspace{2ex}
+  \begin{block}{Line directly below title graphic}
+    \verb!\setbeamertemplate{title page graphic line}[default][1.5ex]!
+  \end{block}
+  \begin{block}{Color}
+    \verb!\setbeamercolor{title page graphic line}{fg=red}!\\
+    Empty foreground color hides line:\\
+    \verb!\setbeamercolor{title page graphic line}{fg=}!
+  \end{block}
+\end{frame}
+
+\begin{frame}[fragile]{Title page title and subtitle}
+  \begin{block}{In preamble}
+    \verb!\title{The titel of my talk}!\\
+    \verb!\subtitle{and whatever}!\\
+  \end{block}
+  \begin{block}{Color/Font}
+    \verb!\setbeamercolor{title}{fg=black}! \verb!\setbeamercolor{subtitle}{fg=black}!
+  \end{block}
+  \begin{block}{Line below title and subtitle}
+    \verb!\setbeamertemplate{title page title line}[default][0.2ex]!
+  \end{block}
+  \begin{block}{Color}
+    \verb!\setbeamercolor{title page title line}{fg=red}!\\
+    Empty foreground color hides line:\\
+    \verb!\setbeamercolor{title page title line}{fg=}!
+  \end{block}
+\end{frame}
+
+\newcommand{\titlepageauthorsdemo}[1]{
+  \setbeamertemplate{title page author and}[#1]
+  \usebeamertemplate{title page author and}
+  \author{Mary Hagedorn\inst{1} \and Walter Heiligenberg\inst{2}}
+  \begin{small}
+    \texttt{\textbackslash setbeamertemplate\{title page author and\}[#1]}
+  \end{small}
+  \par
+  \insertauthor
+  \setbeamertemplate{title page author and}[line]
+  \vfill
+}
+
+\begin{frame}[fragile]{Title page authors}
+  \begin{block}{In preamble}
+    \strut\verb!\author{Mary Hagedorn\inst{1} \and Walter Heiligenberg\inst{2}}!
+  \end{block}
+  \titlepageauthorsdemo{space}
+  \titlepageauthorsdemo{comma}
+  \titlepageauthorsdemo{line}
+  \titlepageauthorsdemo{and}
+  \begin{block}{Color/Font}
+    \verb!\setbeamercolor{author}{fg=black}!
+  \end{block}
+\end{frame}
+
+\newcommand{\titlepageinstitutedemo}[1]{
+  \setbeamertemplate{title page institute and}[#1]
+  \usebeamertemplate{title page institute and}
+  \institute{\inst{1}University \and \inst{2}Scripps}
+  \begin{small}
+    \texttt{\textbackslash setbeamertemplate\{title page institute and\}[#1]}
+  \end{small}
+  \par
+  \insertinstitute
+  \setbeamertemplate{title page institute and}[line]
+  \vfill
+}
+
+\begin{frame}[fragile]{Title page institutes}
+  \begin{block}{In preamble}
+    \strut\verb!\institute{\inst{1}University \and \inst{2}Scripps}!
+  \end{block}
+  \titlepageinstitutedemo{space}
+  \titlepageinstitutedemo{comma}
+  \titlepageinstitutedemo{line}
+  \begin{block}{Color/Font}
+    \verb!\setbeamercolor{institute}{fg=black}!
+  \end{block}
+\end{frame}
+
+\begin{frame}[fragile]{Title page date}
+  \begin{block}{In preamble}
+    \strut\verb!\date[2020]{ICN 2020}!
+  \end{block}
+  \begin{block}{Font}
+    \verb!\setbeamerfont{date}{size=\normalsize}!
+  \end{block}
+  \begin{block}{Color}
+    Same as for institutes.
+  \end{block}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
+\section{Sectioning pages}
+
+\subsection{Section page}
+
+\frame[plain]{\subsectionpage}
+
+\begin{frame}[fragile]{Section page}
+  Section commands between the frames, like
+  \begin{block}{}
+    \verb!\section{A new section}!
+  \end{block}
+  automaticallly create a special frame with section number and title.
+
+  \begin{block}{No automatic section pages}
+    \verb!\AtBeginSection{}  % in preamble!
+  \end{block}
+  \begin{block}{Manual insertion of a section page}
+    \verb!\frame[plain]{\sectionpage}!
+  \end{block}
+  \begin{block}{Colors/Fonts}
+    \verb!\setbeamercolor{section name}{parent=titlelike}!
+    \verb!\setbeamercolor{section name separator}{parent=section name}!
+    \verb!\setbeamercolor{section title}{parent=titlelike}!
+  \end{block}
+\end{frame}
+
+\subsection{Subsection page}
+
+\frame[plain]{\subsectionpage}
+
+\begin{frame}[fragile]{Subsection pages}
+  After a subsection command\\
+  \begin{block}{}
+    \verb!\subsection{A new subsection}!
+  \end{block}
+  you may want to insert a subsection page displaying the current
+  section and subsection numbers and titles:
+  \begin{block}{Subsection page}
+    \verb!\frame[plain]{\subsectionpage}!
+  \end{block}
+  \vfill
+  \begin{block}{Colors/Fonts}
+    \verb!\setbeamercolor{subsection name}{parent=titlelike}!
+    \verb!\setbeamercolor{subsection name separator}{parent=section name}!
+    \verb!\setbeamercolor{subsection title}{parent=titlelike}!
+  \end{block}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
+\section{Further reading}
+
+\begin{frame}{Beamer user guide}
+  Read the beamer user guide at
+  \begin{block}{}
+    \url{http://tug.ctan.org/macros/latex/contrib/beamer/doc/beameruserguide.pdf}
+  \end{block}
+  
+  \vfill
+  In particular
+  \begin{itemize}
+  \item the tutorial (section 3)
+  \item the ``guidelines for creating presentations'' (section 5) --- quite nice and independent of beamer!
+  \item ``creating overlays'' (section 9)
+  \item section 11 for some fancy features (hyperlinks and zooming)
+  \item ``local structure'' (section 12) for more infos on lists and blocks, etc.
+  \end{itemize}
+\end{frame}
+
+\begin{frame}{Beamer templates}
+  \begin{alertblock}{}
+    Templates are a powerful method of beamer that allow you to modify
+    the appearance of your presentation.
+  \end{alertblock}
+  \vfill
+  Read the beamer user guide
+  \begin{itemize}
+  \item section 16.3 ``Changing the Templates Used for Different Elements of a Presentation''
+  \end{itemize}
+  \vfill
+  You find a nice summary of common beamer template/color/font names in the
+  \begin{block}{Beamer appearance cheat sheet}
+    \url{http://www.cpt.univ-mrs.fr/~masson/latex/Beamer-appearance-cheat-sheet.pdf}
+  \end{block}
+  \vfill
+  For specific option, simply look into the style file
+  \begin{block}{}
+    \url{beamerthemelines.sty}
+  \end{block}
+  and the aptero color theme file
+  \begin{block}{}
+    \url{beamercolorthemeaptero.sty}
+  \end{block}
+\end{frame}
+
+\end{document}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%