diff --git a/Makefile b/Makefile
index abca1eb..e5aca8f 100644
--- a/Makefile
+++ b/Makefile
@@ -22,8 +22,7 @@ install :
 
 
 clean :
-	rm -f *~
-	rmtex $(BASENAMES)
+	rm -f *~ *.aux *.log *.nav *.out *.snm *.toc *.vrb
 
 cleanup : clean
 	rm -f $(PDFFILES)
diff --git a/README.md b/README.md
index 01f65cb..647faab 100644
--- a/README.md
+++ b/README.md
@@ -12,9 +12,10 @@ The following style files are provided:
 - `beamercolorthemeaptero.sty`: provides a palette of muted colors and
   the `aptero` color theme fitting not only the `lines` theme.
 - `beamerthemeut.sty`: provides the `ut` theme ---
-  the `lines` theme specifically adapted for the University of Tuebingen.
+  the `lines` theme specifically adapted for the cooperate design of
+  the University of Tübingen.
 - `beamercolorthemeut.sty`: the color palette of the cooperate design
-  of the University of Tuebingen. Used by the `ut` theme.
+  of the University of Tübingen. Used by the `ut` theme.
 
 ## Usage of the `lines` theme
 
@@ -77,17 +78,23 @@ When using the `ut` theme, then you need the style files for the
 \end{document}
 ```
 
-## Examples
+## User guides and manual
 
 See the `lines-example.tex` and the `ut-example.tex` file for examples
 and descriptions of the respective themes.
 
-Run
+`lines-manual.tex` explains the various templates introduced by the
+lines theme and how they can be modified.
+
+Run in your shell
 ```
 > make talks
 ```
 to compile them.
 
+Or, on not so potent operating systems, compile them manually with
+`pdflatex` or `lualatex`.
+
 
 ## Installation
 
diff --git a/lines-example.tex b/lines-example.tex
index bce6c9b..8d2fcd3 100644
--- a/lines-example.tex
+++ b/lines-example.tex
@@ -62,16 +62,9 @@
   \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}
 
@@ -212,7 +205,7 @@
   \end{minipage}
 \end{frame}
 
-\begin{frame}[fragile]{Itemize with action items}
+\begin{frame}[c,fragile]{Itemize with action items}
   \begin{minipage}[t]{0.45\textwidth}
     \vspace{-2ex}
     \begin{block}{Itemize}
@@ -239,11 +232,6 @@
     \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}
 
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