[Tex/LaTex] beamer: content top and bottom margins

beamermargins

It is trivial to modify the left and right margins in beamer.

But what about the top and bottom?

If possible, I would like to reduce a little bit that top margin, marked with the hand-drawn red arrow:

screenshot

MWE:

\documentclass[t]{beamer}

\setbeamersize{text margin left=0.5em, text margin right=0.5em}
\setbeamertemplate{frametitle}{\color{black}\bfseries\insertframetitle\par\vskip-6pt\hrulefill}

\newcommand\FourQuad[4]{
    \colorbox{yellow}{\begin{minipage}[b][.40\textheight][t]{.49\textwidth}#1\end{minipage}}\hfill
    \begin{minipage}[b][.40\textheight][t]{.49\textwidth}#2\end{minipage}\\
    \begin{minipage}[b][.40\textheight][t]{.49\textwidth}#3\end{minipage}\hfill
    \begin{minipage}[b][.40\textheight][t]{.49\textwidth}#4\end{minipage}
}

\begin{document}

\begin{frame}
\frametitle{A frame divided in four quadrants}
\FourQuad%
{First quadrant contents and some more text text text text more text text text text more text text text text more text text text text more text text text text more text text text text more text text text text}%
{
  \centering
  \rule{3cm}{2cm}
  A test figure.
}%
{\begin{align*}
  a &= b \\
  &= c \\
  & = d.
\end{align*}}%
{Fourth quadrant contents and some more text text text text more text text text text more text text text text more text text text text more text text text text more text text text text more text text text text}
\end{frame}

\end{document}

Best Answer

Do you want to do this only for your "quad"-frame or globally? For only this special frame, a quick hack would be to simply insert \vspace{}

\documentclass[t]{beamer}

\setbeamersize{text margin left=0.5em, text margin right=0.5em}
\setbeamertemplate{frametitle}{\color{black}\bfseries\insertframetitle\par\vskip-6pt\hrulefill}

\newcommand\FourQuad[4]{
        \vspace*{-0.2cm}
    \colorbox{yellow}{\begin{minipage}[b][.40\textheight][t]{.49\textwidth}#1\end{minipage}}\hfill
    \begin{minipage}[b][.40\textheight][t]{.49\textwidth}#2\end{minipage}\\
    \begin{minipage}[b][.40\textheight][t]{.49\textwidth}#3\end{minipage}\hfill
    \begin{minipage}[b][.40\textheight][t]{.49\textwidth}#4\end{minipage}
}

\begin{document}

\begin{frame}
\frametitle{A frame divided in four quadrants}
\FourQuad%
{First quadrant contents and some more text text text text more text text text text more text text text text more text text text text more text text text text more text text text text more text text text text}%
{
  \centering
  \rule{3cm}{2cm}
  A test figure.
}%
{\begin{align*}
  a &= b \\
  &= c \\
  & = d.
\end{align*}}%
{Fourth quadrant contents and some more text text text text more text text text text more text text text text more text text text text more text text text text more text text text text more text text text text}
\end{frame}

\end{document}

enter image description here

EDIT:

To make this hack globally, add the \vspace{} to the frametitle template

\documentclass[t]{beamer}

\setbeamersize{text margin left=0.5em, text margin right=0.5em}
\setbeamertemplate{frametitle}{\color{black}\bfseries\insertframetitle\par\vskip-6pt\hrulefill \vspace*{-0.2cm}}

\newcommand\FourQuad[4]{
    \colorbox{yellow}{\begin{minipage}[b][.40\textheight][t]{.49\textwidth}#1\end{minipage}}\hfill
    \begin{minipage}[b][.40\textheight][t]{.49\textwidth}#2\end{minipage}\\
    \begin{minipage}[b][.40\textheight][t]{.49\textwidth}#3\end{minipage}\hfill
    \begin{minipage}[b][.40\textheight][t]{.49\textwidth}#4\end{minipage}
}

\begin{document}

\begin{frame}
\frametitle{A frame divided in four quadrants}
\FourQuad%
{First quadrant contents and some more text text text text more text text text text more text text text text more text text text text more text text text text more text text text text more text text text text}%
{
  \centering
  \rule{3cm}{2cm}
  A test figure.
}%
{\begin{align*}
  a &= b \\
  &= c \\
  & = d.
\end{align*}}%
{Fourth quadrant contents and some more text text text text more text text text text more text text text text more text text text text more text text text text more text text text text more text text text text}
\end{frame}

\end{document}
Related Question