\setbeamercolor{gymriem}{}

\definecolor{gymriemblue}{RGB}{33,95,154}
\setbeamercolor{gymriemtitle}{bg=gymriemblue, fg=white}

\definecolor{gymriemtitletext}{RGB}{0,112,192}

\setbeamercolor{progress bar in section page}{
  use=progress bar,
  parent=progress bar
}

\setbeamertemplate{title page}{
 \includegraphics[keepaspectratio, width=0.9\paperwidth, trim=0 0 0 5mm]{images/logos/gymriem-banner.png}
 \vfill
 \begin{beamercolorbox}[ht=0.4\paperheight, wd=\paperwidth]{gymriemtitle}
  \centering
  \Huge\textbf{\inserttitle}\par
  \Huge\textbf{\schoolyear}\par
  \vspace{0.2cm}
  \small\insertdate\par
  \vspace{0.2cm}
 \end{beamercolorbox}
 \vfill
}

\newlength{\gymriem@progressonsectionpage}

\setbeamercolor{section title}{fg=gymriemtitletext}
\setbeamerfont{section title}{size=\LARGE, series=\bfseries}
\setbeamertemplate{section page}{
  \centering
  \begin{minipage}{22em}
    \raggedright
    \usebeamercolor[fg]{section title}
    \usebeamerfont{section title}
    \LARGE\insertsectionhead\\[-1ex]
    \setlength{\gymriem@progressonsectionpage}{%
      \textwidth * \ratio{\insertframenumber pt}{\inserttotalframenumber pt}%
    }%
    \begin{tikzpicture}
      \fill[gymriemblue!50!black!30] (0,0) rectangle (\textwidth, 0.5pt);
      \fill[gymriemblue] (0,0) rectangle (\gymriem@progressonsectionpage, 0.5pt);
    \end{tikzpicture}%
    \par
  \end{minipage}
  \par
  \vspace{\baselineskip}
}

\setbeamercolor{frametitle}{fg=gymriemtitletext}
\setbeamerfont{frametitle}{size=\Large, series=\bfseries}

\setbeamertemplate{frametitle}{
  \insertframetitle\hfill
  \includegraphics[scale=0.15, trim=0 0 2mm -5mm]{images/logos/gymriem-full.png}
}

\setbeamertemplate{footline}{
 \hspace*{5mm}
 \textcolor{gray!80!black}
 \insertdate
 \hspace{0.35\paperwidth}
 \textcolor{gray!80!black}{gyMRiem Lehrerkonferenz}
 \hfill\textcolor{gray!80!black}\thepage\hspace*{5mm}
 \vspace{1.5mm}
}

% TODO: Not working
% \setbeamercolor{itemize items}{fg=black, bg=black}
\setbeamertemplate{itemize items}[circle]