simplified block environments

beamercolorthemeaptero.sty

@@ -57,20 +57,20 @@
 \setbeamercolor{block title}{fg=white, bg=blue}
 \setbeamercolor{block body}{fg=normal text.fg, bg=blue!20}
 \setbeamercolor{block line top}{fg=}
-\setbeamercolor{block line middle}{fg=}
+\setbeamercolor{block line middle}{fg=blue}
-\setbeamercolor{block line bottom}{fg=}
+\setbeamercolor{block line bottom}{fg=blue}
 
 \setbeamercolor{block title alerted}{parent={block title}, bg=red}
 \setbeamercolor{block body alerted}{fg=red, bg=red!15}
 \setbeamercolor{block line alerted top}{fg=}
-\setbeamercolor{block line alerted middle}{fg=}
+\setbeamercolor{block line alerted middle}{fg=red}
-\setbeamercolor{block line alerted bottom}{fg=}
+\setbeamercolor{block line alerted bottom}{fg=red}
 
 \setbeamercolor{block title example}{parent={block title}, bg=lightgreen}
 \setbeamercolor{block body example}{fg=normal text.fg, bg=lightgreen!40}
 \setbeamercolor{block line example top}{fg=}
-\setbeamercolor{block line example middle}{fg=}
+\setbeamercolor{block line example middle}{fg=lightgreen}
-\setbeamercolor{block line example bottom}{fg=}
+\setbeamercolor{block line example bottom}{fg=lightgreen}
 
 \if@beamer@colors@set
 

beamercolorthemeut.sty

@@ -52,20 +52,20 @@
 \setbeamercolor{block title}{fg=white, bg=utlightblue}
 \setbeamercolor{block body}{fg=normal text.fg, bg=utlightblue!15}
 \setbeamercolor{block line top}{fg=}
-\setbeamercolor{block line middle}{fg=}
+\setbeamercolor{block line middle}{fg=utlightblue}
-\setbeamercolor{block line bottom}{fg=}
+\setbeamercolor{block line bottom}{fg=utlightblue}
 
 \setbeamercolor{block title alerted}{parent={block title}, bg=utred}
 \setbeamercolor{block body alerted}{fg=utred, bg=utred!10}
 \setbeamercolor{block line alerted top}{fg=}
-\setbeamercolor{block line alerted middle}{fg=}
+\setbeamercolor{block line alerted middle}{fg=utred}
-\setbeamercolor{block line alerted bottom}{fg=}
+\setbeamercolor{block line alerted bottom}{fg=utred}
 
 \setbeamercolor{block title example}{parent={block title}, bg=utgreen}
 \setbeamercolor{block body example}{fg=normal text.fg, bg=utgreen!30}
 \setbeamercolor{block line example top}{fg=}
-\setbeamercolor{block line example middle}{fg=}
+\setbeamercolor{block line example middle}{fg=utgreen}
-\setbeamercolor{block line example bottom}{fg=}
+\setbeamercolor{block line example bottom}{fg=utgreen}
 
 \addtobeamertemplate{proof begin}{%
   \setbeamercolor{block title}{fg=white, bg=utmagenta}

beamerthemelines.sty

@@ -54,7 +54,7 @@
 \mode<presentation>
 
 % margins:
-\setbeamersize{text margin left=1em,text margin right=1em}
+\setbeamersize{text margin left=1ex,text margin right=1ex}
 
 % no navigation symbols:
 \defbeamertemplate{navigation symbols}{empty}{}
@@ -341,124 +341,68 @@
 \setbeamertemplate{enumerate subitem}[alph] % default, circle, square, ball, alph, arabic, roman
 
 
-%%%%% block environment:
+%%%%% block environments:
 
-\defbeamertemplate{block begin}{lines}[2]{%
+\newcommand{\block@lines@begin}[3]{%
  \par\vskip\medskipamount%
-  \usebeamerfont{block title}%
+  \usebeamerfont{block title#1}%
   \IfStrEq{\insertblocktitle}{}{}{%
-    \ifbeamercolorempty[fg]{block line top}{}{%
+    \ifbeamercolorempty[fg]{block line#1 top}{}{%
       \nointerlineskip
-      \begin{beamercolorbox}[wd=\columnwidth,hd=#1]{block line top}
+      \begin{beamercolorbox}[wd=\columnwidth,hd=#2]{block line#1 top}
-        \rule{\columnwidth}{#1}
+        \rule{\columnwidth}{#2}
       \end{beamercolorbox}
       \nointerlineskip%
     }
-    \begin{beamercolorbox}[wd=\columnwidth,ht=2.5ex,dp=1ex,leftskip=2mm,rightskip=2mm]{block title}
+    \begin{beamercolorbox}[wd=\columnwidth,ht=2.4ex,dp=0.9ex,leftskip=2mm,rightskip=2mm]{block title#1}
       \strut\insertblocktitle
     \end{beamercolorbox}}
   \nointerlineskip
-  \ifbeamercolorempty[fg]{block line middle}{}{%
+  \ifbeamercolorempty[fg]{block line#1 middle}{}{%
-    \begin{beamercolorbox}[wd=\columnwidth,hd=#2]{block line middle}
+    \begin{beamercolorbox}[wd=\columnwidth,hd=#3]{block line#1 middle}
-      \rule{\columnwidth}{#2}
+      \rule{\columnwidth}{#3}
     \end{beamercolorbox}
     \nointerlineskip}%
-  \usebeamerfont{block body}%
+  \usebeamerfont{block body#1}%
-  \begin{beamercolorbox}[wd=\columnwidth,colsep=2mm]{block body}
+  \begin{beamercolorbox}[wd=\columnwidth,colsep=2mm]{block body#1}
  }
 
-\defbeamertemplate{block end}{lines}[1][1pt]{%
+\newcommand{\block@lines@end}[2]{%
+    \vspace{-0.4ex}%
   \end{beamercolorbox}%
-  \ifbeamercolorempty[fg]{block line bottom}{}{%
+  \ifbeamercolorempty[fg]{block line#1 bottom}{}{%
     \nointerlineskip
-    \begin{beamercolorbox}[wd=\columnwidth,hd=#1]{block line bottom}
+    \begin{beamercolorbox}[wd=\columnwidth,hd=#2]{block line#1 bottom}
-      \rule{\columnwidth}{#1}
+      \rule{\columnwidth}{#2}
     \end{beamercolorbox}
   }%
 }
 
-\setbeamertemplate{block begin}[lines]{1pt}{1pt}
+%%%%% block environment:
-\setbeamertemplate{block end}[lines][1pt]
 
+\defbeamertemplate{block begin}{lines}[2]{\block@lines@begin{}{#1}{#2}}
+\defbeamertemplate{block end}{lines}[1]{\block@lines@end{}{#1}}
 
-%%%%% block alerted environment:
+\setbeamertemplate{block begin}[lines]{0.5pt}{0.5pt}
+\setbeamertemplate{block end}[lines]{0.5pt}
 
-\defbeamertemplate{block alerted begin}{lines}[2]{%
-  \par\vskip\medskipamount%
-  \usebeamerfont{block title alerted}%
-  \IfStrEq{\insertblocktitle}{}{}{%
-    \ifbeamercolorempty[fg]{block line alerted top}{}{%
-      \nointerlineskip
-      \begin{beamercolorbox}[wd=\columnwidth,hd=#1]{block line alerted top}
-        \rule{\columnwidth}{#1}
-      \end{beamercolorbox}
-      \nointerlineskip%
-    }
-    \begin{beamercolorbox}[wd=\columnwidth,ht=2.5ex,dp=1ex,leftskip=2mm,rightskip=2mm]{block title alerted}
-      \strut\insertblocktitle
-    \end{beamercolorbox}}
-  \nointerlineskip
-  \ifbeamercolorempty[fg]{block line alerted middle}{}{%
-    \begin{beamercolorbox}[wd=\columnwidth,hd=#2]{block line alerted middle}
-      \rule{\columnwidth}{#2}
-    \end{beamercolorbox}
-    \nointerlineskip}%
-  \usebeamerfont{block body}%
-  \begin{beamercolorbox}[wd=\columnwidth,colsep=2mm]{block body alerted}
-  }
 
-\defbeamertemplate{block alerted end}{lines}[1][1pt]{%
+%%%%% block alerted environment:
-  \end{beamercolorbox}%
-  \ifbeamercolorempty[fg]{block line alerted bottom}{}{%
-    \nointerlineskip
-    \begin{beamercolorbox}[wd=\columnwidth,hd=#1]{block line alerted bottom}
-      \rule{\columnwidth}{#1}
-    \end{beamercolorbox}
-  }%
-}
 
-\setbeamertemplate{block alerted begin}[lines]{1pt}{1pt}
+\defbeamertemplate{block alerted begin}{lines}[2]{\block@lines@begin{ alerted}{#1}{#2}}
-\setbeamertemplate{block alerted end}[lines][1pt]
+\defbeamertemplate{block alerted end}{lines}[1]{\block@lines@end{ alerted}{#1}}
 
+\setbeamertemplate{block alerted begin}[lines]{0.5pt}{0.5pt}
+\setbeamertemplate{block alerted end}[lines]{0.5pt}
 
-%%%%% block example environment:
 
-\defbeamertemplate{block example begin}{lines}[2]{%
+%%%%% block example environment:
-  \par\vskip\medskipamount%
-  \usebeamerfont{block title example}%
-  \IfStrEq{\insertblocktitle}{}{}{%
-    \ifbeamercolorempty[fg]{block line example top}{}{%
-      \nointerlineskip
-      \begin{beamercolorbox}[wd=\columnwidth,hd=#1]{block line example top}
-        \rule{\columnwidth}{#1}
-      \end{beamercolorbox}
-      \nointerlineskip%
-    }
-    \begin{beamercolorbox}[wd=\columnwidth,ht=2.5ex,dp=1ex,leftskip=2mm,rightskip=2mm]{block title example}
-      \strut\insertblocktitle
-    \end{beamercolorbox}}
-  \nointerlineskip
-  \ifbeamercolorempty[fg]{block line example middle}{}{%
-    \begin{beamercolorbox}[wd=\columnwidth,hd=#2]{block line example middle}
-      \rule{\columnwidth}{#2}
-    \end{beamercolorbox}
-    \nointerlineskip}%
-  \usebeamerfont{block body}%
-  \begin{beamercolorbox}[wd=\columnwidth,colsep=2mm]{block body example}
-  }
 
-\defbeamertemplate{block example end}{lines}[1][1pt]{%
+\defbeamertemplate{block example begin}{lines}[2]{\block@lines@begin{ example}{#1}{#2}}
-  \end{beamercolorbox}%
+\defbeamertemplate{block example end}{lines}[1]{\block@lines@end{ example}{#1}}
-  \ifbeamercolorempty[fg]{block line example bottom}{}{%
-    \nointerlineskip
-    \begin{beamercolorbox}[wd=\columnwidth,hd=#1]{block line example bottom}
-      \rule{\columnwidth}{#1}
-    \end{beamercolorbox}
-  }%
-}
 
-\setbeamertemplate{block example begin}[lines]{1pt}{1pt}
+\setbeamertemplate{block example begin}[lines]{0.5pt}{0.5pt}
-\setbeamertemplate{block example end}[lines][1pt]
+\setbeamertemplate{block example end}[lines]{0.5pt}
 
 
 %%%%% title page %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

beamerthemeut.sty

@@ -50,13 +50,13 @@
 \setbeamertemplate{enumerate subitem}[alph] % default, circle, square, ball, alph, arabic, roman
 
 \setbeamertemplate{block begin}[lines]{1pt}{1pt} % default, rounded, lines
-\setbeamertemplate{block end}[lines][1pt]
+\setbeamertemplate{block end}[lines]{1pt}
 
 \setbeamertemplate{block alerted begin}[lines]{1pt}{1pt} % default, rounded, lines
-\setbeamertemplate{block alerted end}[lines][1pt]
+\setbeamertemplate{block alerted end}[lines]{1pt}
 
 \setbeamertemplate{block example begin}[lines]{1pt}{1pt} % default, rounded, lines
-\setbeamertemplate{block example end}[lines][1pt]
+\setbeamertemplate{block example end}[lines]{1pt}
 
 \setbeamertemplate{title page}[leftlines]          % leftlines, centerlines
 \setbeamertemplate{title page graphic line}[default][1.4ex]

lines-example.tex

@@ -242,19 +242,19 @@
     Block with title and content: \texttt{block} environment with title as argument.
   \end{block}
   \begin{block}{}
-    Block without title.
+    Block with empty title.
   \end{block}
   \begin{alertblock}{Careful!}
     Alert block with title and content: \texttt{alertblock} environment with title as argument.
   \end{alertblock}
   \begin{alertblock}{}
-    Alert block without title.
+    Alert block with empty title.
   \end{alertblock}
   \begin{exampleblock}{Example}
     Example block with title and content: \texttt{exampleblock} environment.
   \end{exampleblock}
   \begin{exampleblock}{}
-    Example block without title.
+    Example block with empty title.
   \end{exampleblock}
 \end{frame}
 
@@ -431,7 +431,7 @@
 
 \begin{frame}[fragile]{Title page authors}
   \begin{block}{In preamble}
-    \verb!\author{Mary Hagedorn\inst{1} \and Walter Heiligenberg\inst{2}}!
+    \strut\verb!\author{Mary Hagedorn\inst{1} \and Walter Heiligenberg\inst{2}}!
   \end{block}
   \begin{block}{Author separator}
     \verb!\setbeamertemplate{title page author and}[line]!
@@ -450,7 +450,7 @@
 
 \begin{frame}[fragile]{Title page institutes}
   \begin{block}{In preamble}
-    \verb!\institute{\inst{1}Somewhere \and \inst{2}Somewhere else}!
+    \strut\verb!\institute{\inst{1}Somewhere \and \inst{2}Somewhere else}!
   \end{block}
   \begin{block}{Institutes separator}
     \verb!\setbeamertemplate{title page institute and}[line]!
@@ -469,7 +469,7 @@
 
 \begin{frame}[fragile]{Title page date}
   \begin{block}{In preamble}
-    \verb!\date[2020]{ICN 2020}!
+    \strut\verb!\date[2020]{ICN 2020}!
   \end{block}
   \begin{block}{Font}
     \verb!\setbeamerfont{date}{size=\normalsize}!
@@ -541,7 +541,18 @@
   \end{itemize}
 \end{frame}
 
-\begin{frame}{More resources}
+\begin{frame}{Beamer templates}
+  Templates are a powerful method of beamer that allow you to modify
+  the appearance of your presentation.
+
+  \bigskip
+  Read in the beamer user guide
+  \begin{itemize}
+  \item section 16.3 ``Changing the Templates Used for Different Elements of a Presentation''
+  \end{itemize}
+
+  \bigskip
+  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}