% Copyright 2003--2007 by Till Tantau
% Copyright 2010 by Vedran Mileti\'c
% Copyright 2012--2015 by Vedran Mileti\'c, Joseph Wright
% Copyright 2016 by Joseph Wright
% Copyright 2017,2018 by Louis Stuart, Joseph Wright
%
% This file may be distributed and/or modified
%
% 1. under the LaTeX Project Public License and/or
% 2. under the GNU Public License.
%
% See the file doc/licenses/LICENSE for more details.

\mode<presentation>


\RequirePackage{beamerbaseboxes}



%
% declare some balls
%

\normalsize
\pgfdeclareradialshading[bg,parent.bg]{tocsphere}{\pgfpoint{-0.5ex}{0.6ex}}%
{%
  color(0cm)=(bg!35!white);
  color(0.44ex)=(bg!75!white);
  color(0.88ex)=(bg!70!black!90!parent.bg);
  color(1.2ex)=(bg!50!black!90!parent.bg);
  color(1.3ex)=(parent.bg)}

\pgfdeclareradialshading[bg,parent.bg]{bigsphere}{\pgfpoint{-0.1849315ex}{.2260273ex}}%
{%
  color(0cm)=(bg!15);
  color(0.1643835ex)=(bg!75);
  color(0.3287671ex)=(bg!70!black);
  color(0.4520547ex)=(bg!50!black);
  color(0.53ex)=(parent.bg)}

\pgfdeclareradialshading[bg,parent.bg]{smallsphere}{\pgfpoint{-0.1479452ex}{0.18287671ex}}%
{%
  color(0cm)=(bg!15);
  color(0.1315068ex)=(bg!75);
  color(0.2630136ex)=(bg!70!black);
  color(0.36164383ex)=(bg!50!black);
  color(0.427ex)=(parent.bg)}

\def\beamer@usesphere#1#2{%
  \hbox{\usebeamercolor{#1}\normalsize\pgfuseshading{#2}}}











%
% Background templates
%

\define@key{beamer@backgroundgrid}{step}{\def\beamer@bggw{#1}}
\define@key{beamer@backgroundgrid}{color}{\def\beamer@bggc{\color{#1}}}

\defbeamertemplate{background}{grid}[1][]
{%
  \setkeys{beamer@backgroundgrid}{step=0.5cm,color=fg!10!bg}%
  \setkeys{beamer@backgroundgrid}{#1}%
  \begin{pgfpicture}{0cm}{0cm}{\the\paperwidth}{\the\paperheight}
    \beamer@bggc
    \pgfpathgrid[stepx=\beamer@bggw,stepy=\beamer@bggw]{\pgfpointorigin}{\pgfpoint{\the\paperwidth}{\the\paperheight}}
    \pgfusepath{stroke}
  \end{pgfpicture}%
}


\define@key{beamer@backgroundshade}{top}{\def\beamer@bgst{#1}}
\define@key{beamer@backgroundshade}{bottom}{\def\beamer@bgsb{#1}}
\define@key{beamer@backgroundshade}{right}{\def\beamer@bgst{#1}}
\define@key{beamer@backgroundshade}{left}{\def\beamer@bgsb{#1}}
\define@key{beamer@backgroundshade}{middle}{\def\beamer@bgsm{#1}}
\define@key{beamer@backgroundshade}{midpoint}{\def\beamer@bgsmp{#1}}

\def\beamer@calcvertshading#1#2#3{%
  {\usebeamercolor{palette primary}}
  \usebeamercolor{normal text}
  \setkeys{beamer@backgroundshade}{top=palette primary.bg!25!bg,bottom=bg,middle={},midpoint=0.5}%
  \setkeys{beamer@backgroundshade}{#3}
  \ifx\beamer@bgsm\@empty
    \pgfdeclareverticalshading{#1}{#2}%
      {color(0cm)=(\beamer@bgsb); color(\the\paperheight)=(\beamer@bgst)}
    \colorlet{beamer@backgroundshadestart}{\beamer@bgsb}%
    \colorlet{beamer@backgroundshadeend}{\beamer@bgst}%
    \colorlet{beamer@average}{beamer@backgroundshadestart!50!beamer@backgroundshadeend}%
  \else
    \pgfdeclareverticalshading{#1}{#2}%
      {color(0cm)=(\beamer@bgsb); color(\beamer@bgsmp\paperheight)=(\beamer@bgsm); color(\the\paperheight)=(\beamer@bgst)}
    \colorlet{beamer@average}{\beamer@bgsm}
  \fi%
}

\def\beamer@calchorishading#1#2#3{%
  {\usebeamercolor{palette primary}}
  \usebeamercolor{normal text}
  \setkeys{beamer@backgroundshade}{left=palette primary.bg!25!bg,right=bg,middle={},midpoint=0.5}%
  \setkeys{beamer@backgroundshade}{#3}
  \ifx\beamer@bgsm\@empty
    \pgfdeclarehorizontalshading{#1}{\the\paperheight}%
      {color(0cm)=(\beamer@bgsb); color(#2)=(\beamer@bgst)}
    \colorlet{beamer@backgroundshadestart}{\beamer@bgsb}%
    \colorlet{beamer@backgroundshadeend}{\beamer@bgst}%
    \colorlet{beamer@average}{beamer@backgroundshadestart!50!beamer@backgroundshadeend}%
  \else
    \pgfdeclarehorizontalshading{#1}{\the\paperheight}%
      {color(0cm)=(\beamer@bgsb); color(\beamer@bgsmp#2)=(\beamer@bgsm); color(#2)=(\beamer@bgst)}
    \colorlet{beamer@average}{\beamer@bgsm}
  \fi%
}



\defbeamertemplate{background canvas}{vertical shading}[1][]
{%
  \pgfuseshading{beamer@backgroundshading}%
}
[action]
{
  \beamer@calcvertshading{beamer@backgroundshading}{\the\paperwidth}{#1}
  \colorlet{beamer@@average}{beamer@average}
  \setbeamercolor{normal text}{bg=beamer@@average}
}




%
% Side bars
%

\defbeamertemplate{sidebar canvas left}{vertical shading}[1][]
{%
  \pgfuseshading{beamer@sidebarcanvasleftshading}%
}
[action]
{
  \beamer@calcvertshading{beamer@sidebarcanvasleftshading}{\the\beamer@leftsidebar}{#1}
}

\defbeamertemplate{sidebar canvas right}{vertical shading}[1][]
{%
  \pgfuseshading{beamer@sidebarcanvasrightshading}%
}
[action]
{
  \beamer@calcvertshading{beamer@sidebarcanvasrightshading}{\the\beamer@rightsidebar}{#1}
}

\defbeamertemplate{sidebar canvas left}{horizontal shading}[1][]
{%
  \pgfuseshading{beamer@sidebarcanvasleftshading}%
}
[action]
{
  \beamer@calchorishading{beamer@sidebarcanvasleftshading}{\beamer@leftsidebar}{#1}
}

\defbeamertemplate{sidebar canvas right}{horizontal shading}[1][]
{%
  \pgfuseshading{beamer@sidebarcanvasrightshading}%
}
[action]
{
  \beamer@calchorishading{beamer@sidebarcanvasrightshading}{\beamer@rightsidebar}{#1}
}






% (sub-)section in toc: sections numbered

\defbeamertemplate{section in toc}{sections numbered}
{\leavevmode\inserttocsectionnumber. \inserttocsection\par}

\defbeamertemplate{subsection in toc}{sections numbered}
{\leavevmode\leftskip=2.5em\inserttocsubsection\par}

\defbeamertemplate{subsubsection in toc}{sections numbered}
{\leavevmode\normalsize\usebeamerfont{subsection in toc}\leftskip=3.5em\usebeamerfont{subsubsection in toc}%
  \inserttocsubsubsection\par}





% (sub-)section in toc: subsections numbered

\defbeamertemplate{section in toc}{subsections numbered}
{\leavevmode\leftskip=2em\inserttocsection\par}

\defbeamertemplate{subsection in toc}{subsections numbered}
{\leavevmode\leftskip=2em\rlap{\hskip-2em\inserttocsectionnumber.\inserttocsubsectionnumber}\inserttocsubsection\par}

\defbeamertemplate{subsubsection in toc}{subsections numbered}
{\leavevmode\normalsize\usebeamerfont{subsection in
    toc}\leftskip=3em\usebeamerfont{subsubsection in toc}%
  \inserttocsubsubsection\par}





% (sub-)section in toc: circle

\defbeamertemplate{section in toc}{circle}
{\leavevmode\leftskip=2ex%
  \llap{%
    \usebeamerfont*{section number projected}%
    \usebeamercolor{section number projected}%
    \begin{pgfpicture}{-1ex}{0ex}{1ex}{2ex}
      \color{bg}
      \pgfpathcircle{\pgfpoint{0pt}{.75ex}}{1.2ex}
      \pgfusepath{fill}
      \pgftext[base]{\color{fg}\inserttocsectionnumber}
    \end{pgfpicture}\kern1.25ex%
  }%
  \inserttocsection\par}

\defbeamertemplate{subsection in toc}{circle}
{\leavevmode\leftskip=2em\inserttocsubsection\par}

\defbeamertemplate{subsubsection in toc}{circle}
{\leavevmode\normalsize\usebeamerfont{subsection in
    toc}\leftskip=3em\usebeamerfont{subsubsection in toc}%
  \inserttocsubsubsection\par}




% (sub-)section in toc: square

\defbeamertemplate{section in toc}{square}
{\leavevmode\leftskip=1.75ex%
  \llap{%
    \usebeamerfont*{section number projected}%
    \usebeamercolor[bg]{section number projected}%
    \vrule width2.25ex height1.85ex depth.4ex%
    \hskip-2.25ex%
    \hbox to2.25ex{\hfil\color{fg}\inserttocsectionnumber\hfil}}%
  \kern1.25ex\inserttocsection\par}

\defbeamertemplate{subsection in toc}{square}
{\leavevmode\leftskip=5ex\llap{%
    \usebeamercolor[bg]{subsection number projected}%
    \vrule width1ex height1ex\kern1ex}\inserttocsubsection\par}

\defbeamertemplate{subsubsection in toc}{square}
{\leavevmode\normalsize\usebeamerfont{subsection in
    toc}\leftskip=7ex\usebeamerfont{subsubsection in toc}%
  \llap{%
    \usebeamercolor[bg]{subsubsection number projected}%
    \vrule width0.75ex height0.75ex\kern1ex}\inserttocsubsubsection\par}




% (sub-)section in toc: ball

\defbeamertemplate{section in toc}{ball unnumbered}
{\leavevmode\raise0.1ex\beamer@usesphere{section number projected}{bigsphere}\kern1.25ex\inserttocsection\par}

\defbeamertemplate{subsection in toc}{ball unnumbered}
{\leavevmode\leftskip=1.5em\raise0.2ex\beamer@usesphere{subsection number projected}{smallsphere}%
  \kern1ex\inserttocsubsection\par}

\defbeamertemplate{subsubsection in toc}{ball unnumbered}
{\leavevmode\normalsize\usebeamerfont{subsection in
    toc}\leftskip=3em\usebeamerfont{subsubsection in toc}%
  \beamer@usesphere{subsubsection number projected}{smallsphere}%
  \kern0.75ex\inserttocsubsubsection\par}




% (sub-)section in toc: ball numbered

\defbeamertemplate{section in toc}{ball}
{\leavevmode\leftskip=2.75ex%
  \llap{%
    \normalsize%
    \begin{pgfpicture}{-1ex}{-0.7ex}{1ex}{1ex}
      \pgftext{\beamer@usesphere{section number projected}{tocsphere}}
      \pgftext{%
        \usebeamerfont*{section number projected}%
        \usebeamercolor{section number projected}%
        \color{fg!90!bg}%
        \inserttocsectionnumber}
    \end{pgfpicture}%
    \kern1.25ex}%
  \inserttocsection\par
}
[action]
{\setbeamerfont{section number projected}{size=\scriptsize}}

\defbeamertemplate{subsection in toc}{ball}
{\leavevmode\leftskip=5ex%
  \llap{\raise0.1ex\beamer@usesphere{subsection number projected}{bigsphere}\kern1ex}%
  \inserttocsubsection\par%
}

\defbeamertemplate{subsubsection in toc}{ball}
{\leavevmode\normalsize\usebeamerfont{subsection in
    toc}\leftskip=7ex\usebeamerfont{subsubsection in toc}%
  \llap{\beamer@usesphere{subsubsection number projected}{bigsphere}\kern0.75ex}%
  \inserttocsubsubsection\par%
}



% Itemize items, circle

\defbeamertemplatealias{itemize item}{triangle}{default}
\defbeamertemplatealias{itemize subitem}{triangle}{default}
\defbeamertemplatealias{itemize subsubitem}{triangle}{default}



% Itemize items, circle

\defbeamertemplate{itemize item}{circle}{\usebeamerfont*{itemize item}\raise1.25pt\hbox{\donotcoloroutermaths$\bullet$}}
\defbeamertemplate{itemize subitem}{circle}{\usebeamerfont*{itemize subitem}\raise1.5pt\hbox{\donotcoloroutermaths$\bullet$}}
\defbeamertemplate{itemize subsubitem}{circle}{\usebeamerfont*{itemize subsubitem}\raise1.5pt\hbox{\donotcoloroutermaths$\bullet$}}




% Itemize items, square

\defbeamertemplate{itemize item}{square}{\hbox{\vrule width 1ex height 1ex}}
\defbeamertemplate{itemize subitem}{square}{\small\hbox{\vrule width 1ex height 1ex}}
\defbeamertemplate{itemize subsubitem}{square}{\small\hbox{\vrule width 1ex height 1ex}}




% Itemize items, ball

\defbeamertemplate{itemize item}{ball}{\raise0.2pt\beamer@usesphere{item projected}{bigsphere}}
\defbeamertemplate{itemize subitem}{ball}{\raise0.2pt\beamer@usesphere{subitem projected}{smallsphere}}
\defbeamertemplate{itemize subsubitem}{ball}{\raise0.2pt\beamer@usesphere{subsubitem projected}{smallsphere}}



% Enumerate items, ball

\defbeamertemplate{enumerate item}{ball}
{
  \begin{pgfpicture}{-1ex}{-0.65ex}{1ex}{1ex}
    \usebeamercolor{item projected}
    {\pgftransformscale{1.75}\pgftext{\normalsize\pgfuseshading{bigsphere}}}
    {\pgftransformshift{\pgfpoint{0pt}{0.5pt}}
      \pgftext{%
        \usebeamerfont*{item projected}%
        \color{fg}\insertenumlabel}}
  \end{pgfpicture}%
}

\defbeamertemplate{enumerate subitem}{ball}
{
  \begin{pgfpicture}{-1ex}{-0.55ex}{1ex}{1ex}
    \usebeamercolor{subitem projected}
    {\pgftransformscale{1.4}\pgftext{\normalsize\pgfuseshading{bigsphere}}}
    \pgftext{%
      \usebeamerfont*{subitem projected}%
      \color{fg}\insertsubenumlabel}
  \end{pgfpicture}%
}

\defbeamertemplate{enumerate subsubitem}{ball}
{
  \begin{pgfpicture}{-1ex}{-0.55ex}{1ex}{1ex}
    \usebeamercolor{subsubitem projected}
    {\pgftransformscale{1.4}\pgftext{\normalsize\pgfuseshading{bigsphere}}}
    \pgftext{%
      \usebeamerfont*{subitem projected}%
      \color{fg}\insertsubsubenumlabel}
  \end{pgfpicture}%
}

\defbeamertemplate{enumerate mini template}{ball}
{
  \begin{pgfpicture}{-1ex}{-0.65ex}{1ex}{1ex}
    \usebeamercolor{\beameritemnestingprefix item projected}
    {\pgftransformscale{1.75}\pgftext{\normalsize\pgfuseshading{bigsphere}}}
    {\pgftransformshift{\pgfpoint{0pt}{0.5pt}}%
     \usebeamerfont*{\beameritemnestingprefix item projected}%
     \pgftext{\color{fg}\insertenumlabel}}
  \end{pgfpicture}
}



% Enumerate items, square

\defbeamertemplate{enumerate item}{square}
{
  \hbox{%
    \usebeamerfont*{item projected}%
    \usebeamercolor[bg]{item projected}%
    \vrule width2.25ex height1.85ex depth.4ex%
    \hskip-2.25ex%
    \hbox to2.25ex{%
      \hfil%
      \color{fg}\insertenumlabel%
      \hfil}%
  }%
}
[action]
{\setbeamerfont{item projected}{size=\scriptsize}}

\defbeamertemplate{enumerate subitem}{square}
{
  \hbox{%
    \usebeamerfont*{subitem projected}%
    \usebeamercolor[bg]{subitem projected}%
    \vrule width2.25ex height1.85ex depth.4ex%
    \hskip-2.25ex%
    \hbox to2.25ex{%
      \hfil%
      \color{fg}\insertsubenumlabel%
      \hfil}%
  }%
}

\defbeamertemplate{enumerate subsubitem}{square}
{
  \hbox{%
    \usebeamerfont*{subitem projected}%
    \usebeamercolor[bg]{subsubitem projected}%
    \vrule width2.25ex height1.85ex depth.4ex%
    \hskip-2.25ex%
    \hbox to2.25ex{%
      \hfil%
      \color{fg}\insertsubsubenumlabel%
      \hfil}%
  }%
}

\defbeamertemplate{enumerate mini template}{square}
{
  \hbox{%
    \usebeamerfont*{\beameritemnestingprefix item projected}%
    \usebeamercolor[bg]{\beameritemnestingprefix item projected}%
    \vrule width2.25ex height1.85ex depth.4ex%
    \hskip-2.25ex%
    \hbox to2.25ex{%
      \hfil%
      \color{fg}\insertenumlabel%
      \hfil}%
  }%
}




% Enumerate items, circle

\defbeamertemplate{enumerate item}{circle}
{
  \usebeamerfont*{item projected}%
  \usebeamercolor[bg]{item projected}%
  \begin{pgfpicture}{-1ex}{0ex}{1ex}{2ex}
    \pgfpathcircle{\pgfpoint{0pt}{.75ex}}{1.2ex}
    \pgfusepath{fill}
    \pgftext[base]{\color{fg}\insertenumlabel}
  \end{pgfpicture}%
}
[action]
{\setbeamerfont{item projected}{size=\scriptsize}}

\defbeamertemplate{enumerate subitem}{circle}
{
  \usebeamerfont*{subitem projected}%
  \usebeamercolor[bg]{subitem projected}%
  \begin{pgfpicture}{-1ex}{0ex}{1ex}{2ex}
    \pgfpathcircle{\pgfpoint{0pt}{.75ex}}{1.2ex}
    \pgfusepath{fill}
    \pgftext[base]{\color{fg}\insertsubenumlabel}
  \end{pgfpicture}%
}

\defbeamertemplate{enumerate subsubitem}{circle}
{
  \usebeamerfont*{subsubitem projected}%
  \usebeamercolor[bg]{subsubitem projected}%
  \begin{pgfpicture}{-1ex}{0ex}{1ex}{2ex}
    \pgfpathcircle{\pgfpoint{0pt}{.75ex}}{1.2ex}
    \pgfusepath{fill}
    \pgftext[base]{\color{fg}\insertsubsubenumlabel}
  \end{pgfpicture}%
}

\defbeamertemplate{enumerate mini template}{circle}
{
  \usebeamerfont*{\beameritemnestingprefix item projected}%
  \usebeamercolor[bg]{\beameritemnestingprefix item projected}%
  \begin{pgfpicture}{-1ex}{0ex}{1ex}{2ex}
    \pgfpathcircle{\pgfpoint{0pt}{.75ex}}{1.2ex}
    \pgfusepath{fill}
    \pgftext[base]{\color{fg}\insertenumlabel}
  \end{pgfpicture}%
}



%
% Frame title continutations
%

\defbeamertemplatealias{frametitle continuation}{roman}{default}

\defbeamertemplate{frametitle continuation}{from second}[1][\insertcontinuationtext]
{\expandafter\ifnum\insertcontinuationcount>1\relax#1\fi}





% Bibliography items

\defbeamertemplatealias{bibliography item}{article}{default}

\defbeamertemplate{bibliography item}{book}
{\lower2pt\hbox{\pgfuseimage{beamericonbook}}}

\defbeamertemplate{bibliography item}{text}
{\insertbiblabel}

\defbeamertemplate{bibliography item}{triangle}
{\scriptsize\raise1.25pt\hbox{\donotcoloroutermaths$\blacktriangleright$}}

\defbeamertemplate{bibliography item}{online}
{\lower3pt\hbox{\pgfuseimage{beamericononline}}}

% Headline

\defbeamertemplate{headline}{text line}[1]
{\hskip\Gm@lmargin\hbox to\@tempdima{\textwidth=\@tempdima\hsize=\textwidth\relax#1\hfil}\hskip\Gm@rmargin}

% Framenumbers in footline
\defbeamertemplate{page number in head/foot}{framenumber}{\insertframenumber}

\defbeamertemplate{page number in head/foot}{totalframenumber}{\insertframenumber\,/\,\inserttotalframenumber}

\defbeamertemplate{page number in head/foot}{appendixframenumber}{%
	\ifbeamer@inappendix%
  	\insertframenumberinappendix\,/\,\insertappendixframenumber%
  \else%
  	\insertframenumber\,/\,\insertmainframenumber%
  \fi%
}

\defbeamertemplate{page number in head/foot}{pagenumber}{\insertpagenumber}

\defbeamertemplate{page number in head/foot}{totalpagenumber}{\insertpagenumber\,/\,\insertpresentationendpage}


% Footline

\defbeamertemplate{footline}{text line}[1]
{\hskip\Gm@lmargin\hbox to\@tempdima{\textwidth=\@tempdima\hsize=\textwidth\relax#1\hfil}\hskip\Gm@rmargin}

\defbeamertemplate{footline}{page number}
{%
  \hfill%
  \usebeamercolor[fg]{page number in head/foot}%
  \usebeamerfont{page number in head/foot}%
  \setbeamertemplate{page number in head/foot}[totalpagenumber]%
  \usebeamertemplate*{page number in head/foot}\kern1em\vskip2pt%
}

\defbeamertemplate{footline}{frame number}
{
  \hfill%
  \usebeamercolor[fg]{page number in head/foot}%
  \usebeamerfont{page number in head/foot}%
  \setbeamertemplate{page number in head/foot}[totalframenumber]%
  \usebeamertemplate*{page number in head/foot}\kern1em\vskip2pt%
}


% Mini frames

\defbeamertemplate{mini frame}{box}
{%
  \begin{pgfpicture}{0pt}{0pt}{.1cm}{.1cm}
    \pgfpathrectangle{\pgfpointorigin}{\pgfpoint{\the\beamer@boxsize}{\the\beamer@boxsize}}
    \pgfusepath{fill,stroke}
  \end{pgfpicture}%
}
[action]
{
  \setbeamersize{mini frame size=.1cm,mini frame offset=.05cm}
}

\defbeamertemplate{mini frame in current subsection}{box}
{%
  \begin{pgfpicture}{0pt}{0pt}{.1cm}{.1cm}
    \pgfpathrectangle{\pgfpointorigin}{\pgfpoint{\the\beamer@boxsize}{\the\beamer@boxsize}}
    \pgfusepath{stroke}
  \end{pgfpicture}%
}

\defbeamertemplate{mini frame}{tick}
{%
  \hskip-0.4pt\vrule height\beamer@boxsize width1.2pt%
}
[action]
{
  \setbeamersize{mini frame size=.1cm,mini frame offset=.05cm}
}

\defbeamertemplate{mini frame in current subsection}{tick}
{%
  \vrule height\beamer@boxsize width0.4pt%
}





%
% Captions
%

\defbeamertemplate{caption}{numbered}
{%
  \raggedright
  {%
    \usebeamercolor[fg]{caption name}%
    \usebeamerfont*{caption name}%
    \insertcaptionname~\insertcaptionnumber
    \usebeamertemplate{caption label separator}%
  }%
  \insertcaption\par
}
\defbeamertemplate{caption label separator}{none}{}
\defbeamertemplate{caption label separator}{colon}{:\ }
\defbeamertemplate{caption label separator}{period}{.\ }
\defbeamertemplate{caption label separator}{space}{\ }
\defbeamertemplate{caption label separator}{quad}{\quad\ }
\defbeamertemplate{caption label separator}{endash}{\ --\ }

\defbeamertemplate{caption}{caption name own line}
{%
  \begin{minipage}{\textwidth}
    \raggedright
  {%
    \usebeamercolor[fg]{caption name}%
    \usebeamerfont*{caption name}%
    \insertcaptionname%
    }\\
      \insertcaption
    \end{minipage}
}





%
% Buttons
%

\newdimen\beamer@blockheadheight%


\defbeamertemplate{navigation symbols}{only frame symbol}
{\insertframenavigationsymbol}

\defbeamertemplate{navigation symbols}{vertical}
{%
  \vbox{%
  \hbox{\insertslidenavigationsymbol}
  \hbox{\insertframenavigationsymbol}
  \hbox{\insertsubsectionnavigationsymbol}
  \hbox{\insertsectionnavigationsymbol}
  \hbox{\insertdocnavigationsymbol}
  \hbox{\insertbackfindforwardnavigationsymbol}}%
}

\defbeamertemplatealias{navigation symbols}{horizontal}{default}



%
% Blocks
%

\defbeamertemplateparent{blocks}[rounded]{block begin,block end,%
  block alerted begin,block alerted end,%
  block example begin,block example end}[1][]
{[#1]}

\defbeamertemplate{block begin}{rounded}[1][shadow=false]
{%
  \par\vskip\medskipamount%
  \begin{beamerboxesrounded}[upper=block title,lower=block body,#1]%
    {\raggedright\usebeamerfont*{block title}\insertblocktitle}%
    \raggedright%
    \usebeamerfont{block body}%
}
\defbeamertemplate{block end}{rounded}[1][]
{\end{beamerboxesrounded}\vskip\smallskipamount}

\defbeamertemplate{block alerted begin}{rounded}[1][shadow=false]
{%
  \par\vskip\medskipamount%
  \begin{beamerboxesrounded}[upper=block title alerted,lower=block body alerted,#1]%
    {\raggedright\usebeamerfont*{block title alerted}\insertblocktitle}%
    \raggedright%
    \usebeamerfont{block body alerted}%
}%
\defbeamertemplate{block alerted end}{rounded}[1][]
{\end{beamerboxesrounded}\vskip\smallskipamount}

\defbeamertemplate{block example begin}{rounded}[1][shadow=false]
{%
  \par\vskip\medskipamount%
  \begin{beamerboxesrounded}[upper=block title example,lower=block body example,#1]
    {\raggedright\usebeamerfont*{block title example}\insertblocktitle}%
    \raggedright%
    \usebeamerfont{block body example}%
}%
\defbeamertemplate{block example end}{rounded}[1][]
{\end{beamerboxesrounded}\vskip\smallskipamount}



%
% Note templates
%

\defbeamertemplate{note page}{plain}
{\insertnote}

\defbeamertemplate{note page}{compressed}
{%
  {%
    \tiny
    \let\\=\relax%
    \insertvrule{0.125\paperheight}{white!90!black}%
    \vskip-0.125\paperheight
    \nointerlineskip
    \vbox{\hfill\insertslideintonotes{0.125}\hskip-\Gm@rmargin\hskip0pt%
      \vskip-0.125\paperheight\nointerlineskip}%
    \nointerlineskip
    \vbox to .125\paperheight{
      \setbox\beamer@tempbox=\hbox{\hbox{\insertsection}}%
      \ht\beamer@tempbox=1em
      \box\beamer@tempbox
      \nointerlineskip
      \setbox\beamer@tempbox=\hbox{\hbox{\quad\insertsubsection}}%
      \ht\beamer@tempbox=1em
      \box\beamer@tempbox
      \nointerlineskip
      \setbox\beamer@tempbox=\hbox{\hbox{\quad\quad\insertshortframetitle}}%
      \ht\beamer@tempbox=1em
      \box\beamer@tempbox
      \vfil
    }\vskip0.5em
  }
  \nointerlineskip
  \insertnote
}



%
% Theorem templates
%

\defbeamertemplate{theorem begin}{ams style}
{%
  \begin{\inserttheoremblockenv}
    {%
      \inserttheoremheadfont
      \inserttheoremname
      \inserttheoremnumber
      \ifx\inserttheoremaddition\@empty\else\ (\inserttheoremaddition)\fi%
      \inserttheorempunctuation
    }%
}

\defbeamertemplate{theorem end}{ams style}
{\end{\inserttheoremblockenv}}


\defbeamertemplate{theorem begin}{numbered}
{%
  \begin{\inserttheoremblockenv}
    {%
      \inserttheoremname
      \inserttheoremnumber
      \ifx\inserttheoremaddition\@empty\else\ (\inserttheoremaddition)\fi%
    }%
}

\defbeamertemplate{theorem end}{numbered}
{\end{\inserttheoremblockenv}}


\defbeamertemplate{theorem begin}{normal font}
{
  \normalfont
  \begin{\inserttheoremblockenv}
  {%
    \inserttheoremname
    \ifx\inserttheoremaddition\@empty\else\ (\inserttheoremaddition)\fi%
  }%
}

\defbeamertemplate{theorem end}{normal font}
{\end{\inserttheoremblockenv}}



\mode
<all>
