metropolis_theme/beamercolorthememetropolis.dtx

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% Copyright 2015 Matthias Vogelgesang and the LaTeX community. A full list of
% contributors can be found at
%
%     https://github.com/matze/mtheme/graphs/contributors
%
% and the original template was based on the HSRM theme by Benjamin Weiss.
%
% This work is licensed under a Creative Commons Attribution-ShareAlike 4.0
% International License (https://creativecommons.org/licenses/by-sa/4.0/).
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% \iffalse
%<driver> \ProvidesFile{beamercolorthememetropolis.dtx}
%<*package>
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{beamercolorthememetropolis}
    [2015/06/12 A Modern Beamer Color Theme]
%</package>
%<driver> \documentclass{ltxdoc}
%<driver> \usepackage{beamercolorthememetropolis}
%<driver> \begin{document}
%<driver> \DocInput{beamercolorthememetropolis.dtx}
%<driver> \end{document}
% \fi
% \CheckSum{0}
% \StopEventually{}
% \iffalse
%<*package>
% ------------------------------------------------------------------------- \fi
% \section{Implementation: \textsc{metropolis} color theme}
% Options
%
%
% darkcolors
%
%    \begin{macrocode}
\newif\if@beamer@metropolis@darkcolors
\@beamer@metropolis@darkcolorsfalse
\DeclareOptionBeamer{darkcolors}{
    \@beamer@metropolis@darkcolorstrue
}
%    \end{macrocode}
%
% Unknown option error handling
%
%    \begin{macrocode}
\DeclareOptionBeamer*{%
  \PackageWarning{beamercolorthememetropolis}{Unknown option `\CurrentOption'}%
}
\ProcessOptionsBeamer
%    \end{macrocode}
%
%
%
% \subsection{Base colors}
%
%    \begin{macrocode}
\definecolor{mDarkBrown}{HTML}{604c38}
\definecolor{mDarkTeal}{HTML}{23373b}
\definecolor{mLightBrown}{HTML}{EB811B}
\definecolor{mLightGreen}{HTML}{14B03D}
%    \end{macrocode}
%
%
%
% \subsection{Base styles}
%
% All colors in the \textsc{metropolis} theme are derived from the definitions
% of |normal text|, |alerted text|, and |example text|.
%
%    \begin{macrocode}
\if@beamer@metropolis@darkcolors
  \setbeamercolor{normal text}{%
    fg=black!2,
    bg=mDarkTeal
  }
\else
  \setbeamercolor{normal text}{%
    fg=mDarkTeal,
    bg=black!2
  }
\fi
\setbeamercolor{alerted text}{%
  fg=mLightBrown
}
\setbeamercolor{example text}{%
  fg=mLightGreen
}
%    \end{macrocode}
%
%
%    \begin{macrocode}
%    \end{macrocode}
%
%
%
% \subsection{Derived colors}
%
% The titles and structural elements (e.g. |itemize| bullets) are set in the
% same color as |normal text|. This would ideally done by setting |normal text|
% as a parent style, which we do to set |titlelike|, but this doesn't work for
% |structure| as its foreground is set explicitly in
% |beamercolorthemedefault.sty|.
%
%    \begin{macrocode}
\setbeamercolor{titlelike}{%
  use=normal text,
  parent=normal text
}
\setbeamercolor{structure}{%
  fg=normal text.fg
}
%    \end{macrocode}
%
% The “primary” palette should be used for the most important navigational
% elements, and possibly of other elements. The \textsc{metropolis} theme uses
% it for frame titles and slides.
%
%    \begin{macrocode}
\setbeamercolor{palette primary}{%
  use=normal text,
  fg=normal text.bg,
  bg=normal text.fg
}
\setbeamercolor{frametitle}{%
  use=palette primary,
  parent=palette primary
}
%    \end{macrocode}
%
% The \textsc{metropolis} inner or outer themes optionally display progress
% bars in various locations. Their color is set by |progress bar| but the two
% different kinds can be customized separately. The horizontal rule on the title
% page is also set based on the progress bar color and can be customized with
% |title separator|.
%
%    \begin{macrocode}
\setbeamercolor{progress bar}{%
  use=alerted text,
  fg=alerted text.fg,
  bg=normal text.bg!50!normal text.fg
}
\setbeamercolor{title separator}{
  use=progress bar,
  parent=progress bar
}
\setbeamercolor{progress bar in head/foot}{%
  use=progress bar,
  parent=progress bar
}
\setbeamercolor{progress bar in section page}{
  use=progress bar,
  parent=progress bar
}
%    \end{macrocode}
%
% Blocks
%
%    \begin{macrocode}
\if@beamer@metropolis@blockbg
  \setbeamercolor{block title}{%
    use=normal text,
    fg=normal text.fg,
    bg=normal text.bg!80!fg
  }
\else
  \setbeamercolor{block title}{use=normal text, parent=normal text}
\fi
\setbeamercolor{block title alerted}{%
    use={block title, alerted text},
    bg=block title.bg,
    fg=alerted text.fg
}
\setbeamercolor{block title example}{%
    use={block title, example text},
    bg=block title.bg,
    fg=example text.fg
}
\setbeamercolor{block body alerted}{use=block body, parent=block body}
\setbeamercolor{block body example}{use=block body, parent=block body}
\setbeamercolor{block body}{
  use={block title, normal text},
  bg=block title.bg!50!normal text.bg
}
%    \end{macrocode}
%
% Footnotes
%
%    \begin{macrocode}
\setbeamercolor{footnote}{fg=normal text.fg!90}
\setbeamercolor{footnote mark}{fg=.}
\mode<all>
%    \end{macrocode}
%
%
%
% \iffalse
%</package>
% \fi
% \Finale
\endinput