All options implemented; Basic usage added onto slides

CELbeamer.cls

@@ -24,6 +24,8 @@
 \spaceforfacefalse
 \newif\ifoverviewatsection
 \overviewatsectionfalse
+\newif\ifshowallatfirstoverview
+\showallatfirstoverviewtrue
 
 \def\groupname#1{\def\@groupname{#1}}
 \def\groupnamewidth#1{\def\@groupnamewidth{#1}}
@@ -612,7 +614,20 @@
   \newgeometry{top=0.5cm,bottom=0cm,left=\kitoutermargin,right=\dimexpr\paperwidth-#1+\kitcolumnsep\relax}
   \setbeamertemplate{background}{\hskip#1\includegraphics[height=\paperheight]{\@titleimage}}
 }
- 
+
+% siehe README.md
+\define@key{beamerframe}{picture}{%
+  \titleimage{#1}
+}
+
+\define@key{beamerframe}{kitlogo}[rgb]{%
+  \titlelogo{#1}
+}
+
+% ┌──────────────────┐
+% │ /Special-Layouts │
+% └──────────────────┘
+
 % ┏━━━━━━━━━━━━━━━━━━━┓
 % ┃ Table of contents ┃
 % ┗━━━━━━━━━━━━━━━━━━━┛
@@ -643,23 +658,40 @@
     \end{textblock*}
 }
 
+\AtBeginSection{%
+\ifoverviewatsection
+\ifnum\value{section}=1
+{
+  \begin{frame}[tableofcontents=blue]{Overview}
+    \tableofcontents[subsectionstyle=show/show/hide]
+  \end{frame}
+}
+\else
+{
+  \begin{frame}[tableofcontents=blue]{Overview}
+    \tableofcontents[currentsection, subsectionstyle=shaded/show/hide]
+  \end{frame}
+}
+\fi
+}
+
+%% ┏━━━━━━━━━━━━━━━━━━━━━┓
+%% ┃ TOC sections styles ┃
+%% ┗━━━━━━━━━━━━━━━━━━━━━┛
+% \setbeamertemplate{section in toc}{{\inserttocsectionnumber.~\inserttocsection}\\[.2em]}
+\setbeamertemplate{section in toc}{{-~\inserttocsection}\\[.2em]}
+\setbeamercolor{section in toc}{fg=kit-royalblue}
+\setbeamerfont{section in toc}{size=\Large, series=\bfseries}
+\setbeamerfont{subsection in toc}{size=\large}
+
+%% ┏━━━━━━━━━━━━━━━━━━━━━━┓
+%% ┃ /TOC sections styles ┃
+%% ┗━━━━━━━━━━━━━━━━━━━━━━┛
+
 % ┏━━━━━━━━━━━━━━━━━━━┓
 % ┃ /Table of contents ┃
 % ┗━━━━━━━━━━━━━━━━━━━┛
 
-% siehe README.md
-\define@key{beamerframe}{picture}{%
-  \titleimage{#1}
-}
-
-\define@key{beamerframe}{kitlogo}[rgb]{%
-  \titlelogo{#1}
-}
-
-% ┌──────────────────┐
-% │ /Special-Layouts │
-% └──────────────────┘
-
 %% ┏━━━━━━━━━━━━━━━━┓
 %% ┃ /Frame-Layout  ┃
 %% ┗━━━━━━━━━━━━━━━━┛
@@ -1106,26 +1138,13 @@
 %% ┗━━━━━━━━━┛
 
 
-%% ┏━━━━━━━━━━━━━━━━━━━━━┓
-%% ┃ TOC sections styles ┃
-%% ┗━━━━━━━━━━━━━━━━━━━━━┛
-\setbeamertemplate{section in toc}{{\inserttocsectionnumber.~\inserttocsection}\\[.2em]}
-\setbeamercolor{section in toc}{fg=kit-royalblue}
-\setbeamerfont{section in toc}{size=\Large, series=\bfseries}
-\setbeamerfont{subsection in toc}{size=\large}
-
-%% ┏━━━━━━━━━━━━━━━━━━━━━━┓
-%% ┃ /TOC sections styles ┃
-%% ┗━━━━━━━━━━━━━━━━━━━━━━┛
-
 %% ┏━━━━━━━━━━━━━━━━━━━━┓
-%% ┃ Block-Definitionen ┃
+%% ┃ Block-Definitions  ┃
 %% ┗━━━━━━━━━━━━━━━━━━━━┛
 
 % Original von tex/latex/beamer/beamerinnerthemedefault.sty
 % Originally from beamerinnerthemedefault.sty
 
-% colsep* durch colsep ersetzt, damit die Blöcke nicht über das Raster herausragen
 % colsep* is replaced by colsep, so that the blocks do not exceed the grid
 \defbeamertemplate*{block begin}{KIT 2025}
 {

CHANGELOG.md

@@ -2,15 +2,15 @@
 All changes of this template is documented in this file.
 
 ## [2025.08.14 v1.0.0] Modifications from sdqbeamer.cls
-- Changed position and size of subtitle and authors in the title page
 - Changed default beamer-class options to en, helvet
+- Disabled navigation bar by default
+- Changed position and size of subtitle and authors in the title page
 - Changed the font size of TOC page
+- Added KIT logo in the header
 - Changed the logo in the footer to group logo
 - Removed date in footer
-- Added KIT logo in the header
-- Disabled navigation bar by default
 - Added the option for adding fundinglogos onto the title page
 - Added the group logo onto overview page
 - Changed the normal fontsize to 19pt
-- Added the spaceforface mode to leave space on the right for recording
-- Added a newif for overview at section option !!! Modification is still needed
+- Added the spaceforface option to leave space on the right for recording
+- Added the overviewatsection option

README.md

@@ -44,10 +44,11 @@ E.g., `\only<2|handout:0>{This is not shown in handout mode.}`, `\item<1-|handou
 
 - The `spaceforface` option leaves extra space on the right-hand-side of the frame to put presenter's video. The width of the space can be adjusted by changing the <width> in \setlength{\spaceforface}{<width>} in `CELbeamer.cls`.
 
-Example: `\documentclass[de, navbaron, kitgrid, handout]{CELbeamer}`
+- The `overviewatsection` option displays the table of contents at each section. Only subsections of the current section is shown.
+
+Example: `\documentclass[de, navbaron, kitgrid, handout, overviewatsection]{CELbeamer}`
 
 ## Title Slide
------------
 Setup: `\begin{frame}[title white vertical, picture=images/...., fundings=]`
 
 The image on the title slide can be set with the `picture=` option. For vertical layouts, the image fits the height; for horizontal layouts, it fits the width.
@@ -62,8 +63,7 @@ Additionally, for horizontal layouts, you can choose the color of the KIT logo.
 
 Example: `\begin{frame}[title white horizontal, picture=images/palladio_bauplan, kitlogo=black]`
 
-Special Slides
---------------
+## Special Slides
 For tables of contents, you can specify the option `tableofcontents=<color>`, where `color` can be either `blue` or `green`. The table of contents will then be shown on a fully colored slide.
 
 There are also special layouts for divider slides with large images. You can select them using frame options.

presentation.tex

@@ -4,7 +4,7 @@
 %% Modified by: Hedongliang Liu
 %% Last modified on: 14.08.2025
 %%%%%%%%%%% CEL beamer class %%%%%%%%%%%%%%%
-\documentclass[overviewatsection]{CELbeamer} 
+\documentclass[handout, overviewatsection]{CELbeamer} 
 %% default options: en, helvet, bigfoot (12pt)
 %% other options: de, franklin, smallfoot (11pt), navbaron, kitgrid, handout, 
 %% spaceforface, overviewatsection
@@ -15,15 +15,8 @@
 \input{\templates/booleans.tex}
 % \input{\templates/modifications.tex}
 % \input{\templates/makros_own.tex}
-\overviewatsectiontrue% toggles to show the toc
 
-\AtBeginSection{%
-\ifoverviewatsection
-\begin{frame}[tableofcontents=blue]{Overview}
-    \tableofcontents[currentsection, subsectionstyle=show/show/hide]
-\end{frame}
-\fi
-}
+% \showallatfirstoverviewfalse % uncomment to not show all sections at the first section
 
 %%%%%%%%%%% Group info: logo must be in the directory logos/ %%%%%%%%%%%%%%%
 %% If no group logo is desired, please call \grouplogo{} 
@@ -59,15 +52,16 @@
 % Start of the presentation
 % Title page
 
-\begin{frame}[title white vertical, picture=images/schloss_back_cut.jpg]
+\begin{frame}[title white vertical, picture=images/castleflagcut]
 	\titlepage
 \end{frame}
 
-\begin{frame}[tableofcontents=blue]{Overview}
-	\tableofcontents
-\end{frame}
+% \begin{frame}[tableofcontents=blue]{Overview}
+% 	\tableofcontents
+% \end{frame}
 
 \section{Basic Usage}
+\subsection{Options}
 \begin{frame}{Usages Options}
 	The following options can be used by putting the \texttt{<option>} in the \texttt{\textbackslash documentclass[<option>]\{CELbeamer.cls\}} command:
 \begin{itemize}
@@ -76,9 +70,9 @@
 	\item \texttt{bigfoot} \textit{(default)} for 12pt font size, \texttt{smallfoot} for 11pt font size
 	\item \texttt{navbaron} to show the navigation bar
 	\item \texttt{kitgrid} to show the grid of rows and columns
-	\item \texttt{handout} to create a handout version of the slides
-	\item \texttt{spaceforface} to leave space for face in recording 
-	\item \texttt{overviewatsection} to show the table of contents at each section
+	\item<2-> \texttt{handout} to create a handout version of the slides
+	\item<2-> \texttt{spaceforface} to leave space for face in recording 
+	\item<2-> \texttt{overviewatsection} to show the table of contents at each section
 \end{itemize}
 \end{frame}
 \begin{frame}{Font Size Examples}
@@ -103,86 +97,7 @@
 	\Huge Huge (capital H) text
 \end{frame}
 
-\subsection{Row/Column Split}
-\begin{frame}{Column Split}
-	\begin{columns}
-		\column{\kitcolumn}	
-		\begin{standardbox}
-			Ich bin ein Blindtext.
-		\end{standardbox}
-		\column{\kitcolumn}	
-		\begin{highlightbox}
-			Ich bin ein Blindtext.
-		\end{highlightbox}
-		\column{\kitcolumn}	
-		\begin{grayhighlightbox}
-			This is in a gray highlight box.
-		\end{grayhighlightbox}
-		\column{\kitcolumn}	
-		\begin{lightgrayhighlightbox}
-			This is in a light gray highlight box.
-		\end{lightgrayhighlightbox}
-		\column{\kitcolumn}	
-		\begin{standardbox}
-			Ich bin ein Blindtext.
-		\end{standardbox}
-		\column{\kitcolumn}	
-		\begin{standardbox}
-			Ich bin ein Blindtext.
-		\end{standardbox}
-	\end{columns}
-	\vspace{1em}
-	\begin{columns}
-		\column{\kittwocolumns}	
-		\begin{standardbox}
-			Ich bin ein Blindtext.
-		\end{standardbox}
-		\column{\kittwocolumns}	
-		\begin{highlightbox}
-			Ich bin ein Blindtext.
-		\end{highlightbox}
-		\column{\kittwocolumns}	
-		\begin{grayhighlightbox}
-			Ich bin ein Blindtext.
-		\end{grayhighlightbox}
-	\end{columns}
-	\vspace{1em}
-	\begin{columns}
-		\column{\kitthreecolumns}	
-		\begin{standardbox}
-			This is in a standardbox.
-		\end{standardbox}
-		\column{\kitthreecolumns}	
-		\begin{highlightbox}
-			This is in a highlightbox.
-		\end{highlightbox}
-	\end{columns}
-\end{frame}
-
-\begin{frame}{Row Split}
-	\begin{columns}
-		\column{\kitfourcolumns}	
-			% \includegraphics[width=\linewidth, trim={0 2cm 0 2cm}, clip]{images/palladio_bauplan.jpg}
-			\lipsum[1][1-8]
-		\column{\kittwocolumns}	
-			\begin{standardbox}
-				Beschreibung
-			\end{standardbox}
-
-			\vspace{1em}
-
-			\begin{highlightbox}
-				Dies ist ein Bauplan der berühmten Villa Rotonda. 
-			\end{highlightbox}
-
-			\vspace{1em}
-
-			\begin{grayhighlightbox}
-				Foto: Klaus Krogmann
-			\end{grayhighlightbox}
-	\end{columns}
-\end{frame}
-
+\subsection{Color Boxes}
 \begin{frame}{Color Blocks}{in the KIT Color Scheme}
 	\begin{columns}
 		\column{\kittwocolumns}
@@ -243,19 +158,73 @@
 	\begin{columns}
 		\column{\kittwocolumns}
 		\begin{contentblock}{Contentblock}
-			(farblos)
+			This is a content block without color.
 		\end{contentblock}
 		\column{\kittwocolumns}
 		\column{\kittwocolumns}
 	\end{columns}
 	% For more colors, see \ref{frame:kit-colors}.
 \end{frame}
+\begin{frame}{Color Boxes}{with Filled Background}
+	\begin{columns}
+		\column{\kitthreecolumns}
+		\begin{standardbox}
+			Standard box
+		\end{standardbox}
+		\column{\kitthreecolumns}
+		\begin{highlightbox}
+			Highlight box
+		\end{highlightbox}
+	\end{columns}
+	\vspace{\kitrowsep}
+	\begin{columns}
+		\column{\kittwocolumns}
+		\begin{grayhighlightbox}
+			Gray highlight box
+		\end{grayhighlightbox}
+		\column{\kittwocolumns}
+		\begin{lightgrayhighlightbox}
+			Light gray highlight box
+		\end{lightgrayhighlightbox}
+	\end{columns}
+\end{frame}
+\begin{frame}{Slide Layout via Column Split}
+	The pre-defined lengths \texttt{$\backslash$kitcolumn, $\backslash$kittwocolumns}, ..., \texttt{ $\backslash$kitsixcolumns} can be used to create columns of different widths.
+	\vspace{\kitrowsep}
+	\begin{columns}
+		\column{\kitthreecolumns}	
+		This is a three-column layout. \\
+		\lipsum[1][1-4]
+		\column{\kitthreecolumns}
+		This is another three-column layout. \\
+		\lipsum[1][1-4]
+	\end{columns}
+	\vspace{\kitrowsep}
+	\begin{columns}
+		\column{\kittwocolumns}	
+		\begin{standardbox}
+			Two column box
+		\end{standardbox}
+		\column{\kittwocolumns}	
+		\begin{highlightbox}
+			Two column box
+		\end{highlightbox}
+		\column{\kittwocolumns}	
+		\begin{grayhighlightbox}
+			Two column box
+		\end{grayhighlightbox}
+	\end{columns}
+\end{frame}
 
+\section{Frames}
 \subsection{Title and Footer}
+\begin{frame}[t]{Title}{Subtitle}
+    % Bei Frames mit Option \texttt{[t]} werden die Inhalte nicht vertikal zentriert, sondern an der Oberkante begonnen.
+	With frames with the option \texttt{[t]}, the content is not vertically centered but started at the top edge.
+\end{frame}
+
 \begin{frame}
-        % Bei Frames ohne Titel wird die Kopfzeile nicht angezeigt, und  
-    % der freie Platz kann für Inhalte genutzt werden.
-	With frames without a title, the header is not displayed, and the free space can be used for content.
+	With frames without a title, the free space for title can be used for content.
 \end{frame}
 
 \begin{frame}[plain]
@@ -263,16 +232,13 @@
 	With frames with the option \texttt{[plain]}, neither header nor footer are displayed.
 \end{frame}
 
-\begin{frame}[t]{Example}
-    % Bei Frames mit Option \texttt{[t]} werden die Inhalte nicht vertikal zentriert, sondern an der Oberkante begonnen.
-	With frames with the option \texttt{[t]}, the content is not vertically centered but started at the top edge.
+\subsection{Footnotes}
+\begin{frame}{Footnotes}
+	\lipsum[1][1-8]\footnote{This is a footnote.}	
 \end{frame}
 
-\begin{frame}{Citation}
-    Citing literature: \cite{klare2021jss}
-\end{frame}
-
-\section{Citations}
+\section{Other Tips}
+\subsection{Citations}
 \begin{frame}{Citations}
   Citations in beamer were often dealed by pasting the full text in the footnote. The biblatex package provides a solution allowing you reuse your .bib file for presentations. Here are several ways of usage:\\[-.5em]
   \begin{itemize}
@@ -286,6 +252,9 @@
   You can print all references that are cited at the end of presentation, as shown in the next slide.
 \end{frame}
 
+\begin{frame}{Citation}
+    Citing literature: \cite{klare2021jss}
+\end{frame}
 
 \subsection{Handout Mode}
 \begin{frame}{Itemize List in Handout Mode}
@@ -297,25 +266,8 @@
 		\item<only@3|handout:2>{Three: This will be shown on a new page in the handout mode.}
 		\item<only@4|handout:2>{Four: This is the fourth item.}
     \end{itemize}
-	% Text
-	% \begin{itemize}
-	% 	\item Item\\ new line
-	% 	\item Item
-	% 	\begin{itemize}
-	% 		\item Item
-	% 		\item Item
-	% 	\end{itemize}
-	% \end{itemize}
-	\begin{enumerate}
-		\item enumeration \lipsum[1][1-8]
-		\item enumeration
-		\item enumeration
-	\end{enumerate}
 \end{frame}
 
-\begin{frame}{Footnotes}
-	\lipsum[1][1-8]\footnote{Dies ist eine Fußnote.}	
-\end{frame}
 \appendix
 \beginbackup