In my MWE I have different types of frames and in my appendix I have a table of contents on the right side of the slides. Now I have a slide which contains a table around which I want to have a greay background. Currently I have:
\documentclass{beamer}
\usetheme{Goettingen}
\usepackage{hyperref}
\usepackage{appendixnumberbeamer}
\usepackage{tcolorbox}
\usepackage{german}
\usepackage{makecell}
\renewcommand\theadalign{bc}
\renewcommand\theadfont{\bfseries}
\renewcommand\theadgape{\Gape[4pt]}
\renewcommand\cellgape{\Gape[4pt]}
\setbeamertemplate{itemize/enumerate body begin}{\Large}
\setbeamertemplate{itemize/enumerate subbody begin}{\large}
\hypersetup{pdfpagemode=FullScreen}
\setbeamerfont{page number in head/foot}{size=\large}
\setbeamertemplate{footline}[frame number]
\newenvironment{specialframe}
{
\begingroup
\advance\textwidth2cm % see beamerthemeGoettingen.sty for the number
\hsize\textwidth
\columnwidth\textwidth
\begin{frame}[plain]
}
{
\end{frame}
\endgroup
}
\begin{document}
\setbeamertemplate{navigation symbols}{}
\title[My study]{Test text\\ Text Text Text TextvTextTextTextTextText Text Text}
\author[J. Doe]{\textbf{My name\\ \vspace{0.2cm}Test test \\Test test TEst Test Test TeTs}}
\titlegraphic{\includegraphics[width=4cm]{myLogo}}
\date{Place, 11 March 2020}
{
\setbeamercolor{page number in head/foot}{fg=structure.fg!10}
\begin{frame}[noframenumbering]
\titlepage
\end{frame}
}
\section{Introduction}
\frame[label=Einf]{
\frametitle{Test \hyperlink{details}{\beamergotobutton{Test}}}
\vspace{0.05cm}
\begin{itemize}
\item Test
\begin{itemize}
\item Test
\end{itemize}
\end{itemize}
}
\section{Test2}
\frame{
\frametitle{Test}
Test
}
\begin{specialframe}
\begin{tcolorbox}[colback=gray!20, colframe=gray!20]
\begin{tabular}{ l | c | r | c | c }
\footnotesize $\bar{X}_T-\bar{X}_V$ & \makecell{\footnotesize Std Text \\$s_{\bar{X}_T-\bar{X}_V}$}& \makecell{\footnotesize Std Text DE \\$SE_{\bar{X}_T-\bar{X}_V}$}& \makecell{\footnotesize T Wert \\\footnotesize $1-\alpha=2,5\%$\\\footnotesize $df=398$}&\makecell{\footnotesize Text te \\Text\\ \footnotesize KI Test Test Test } \\
\hline
-0.33 & 5 & 6& 6 & 6 \\
7 & 8 & 9 & 6 & 6\\
\hline
\end{tabular}
\end{tcolorbox}
\end{specialframe}
\appendix
\setbeamercolor{page number in head/foot}{fg=structure.fg!10}
\section{End}
\frame[label=End]{
\frametitle{Test \hyperlink{details}{\beamergotobutton{Test}}}
\vspace{0.05cm}
\begin{itemize}
\item Test
\begin{itemize}
\item Test
\end{itemize}
\end{itemize}
}
\section[Sources]{references}
\begin{frame}\frametitle{Test \& Test}
\begin{thebibliography}{9}
\bibitem[Beamerpaket]{paket} \emph{Beamer Paket} \\
\text{http://latex-beamer.sourceforge.net/}
\end{thebibliography}
\end{frame}
\end{document}
The grey background of my tcolorbox should be larger, so that the last column is also fully covered.
But just as much as necessary. As shown with the dotted line I draw. So depending on the text inside. I tried oversize but that does not really help. I still want to have the left side as it is. With oversize I get the problem that the whole area on the left is grey and no white space/margin anymore.
