template.tex

\documentclass[aspectratio=43]{beamer}

\usepackage[T1]{fontenc}
\usepackage[default]{gillius}

\definecolor{cDESYBlue}{RGB}{0,133,215}
\definecolor{cDESYOrange}{RGB}{242,142,0}
\definecolor{desycyan}{RGB}{0,166,235}

\mode<presentation>{
  \usetheme{desy}
  \setbeamercovered{transparent}
}

\usepackage{graphicx}
\usepackage{amssymb,amsfonts,amsmath,mathtext}
\graphicspath{{images}}
\usepackage[normalem]{ulem}

\setbeamercolor{block title}{fg=white,bg=cDESYBlue}
\setbeamercolor{block body}{fg=white,bg=desycyan}

\setbeamercolor{footnote}{fg=black}
\setbeamercolor{footnote mark}{fg=black}

\begin{document}

\def \transp{50}
\beamertemplatenavigationsymbolsempty
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\title[]{Title}
\author{Name~Surname}
\institute[ShortInst]{Institute Name}
\date{\today}

\begin{frame}[plain]
  \titlepage
\end{frame}

\begin{frame}[plain]
  \tableofcontents
\end{frame}

\section{Intro}

\begin{frame}
\begin{block}{Block}
\begin{itemize}
	\item Item
\end{itemize}
\end{block}
\end{frame}

\end{document}