\documentclass[17pt]{beamer}
% \usepackage{pgfpages}
% \setbeameroption{show notes on second screen}

% \newlength\hackpaperwidth \hackpaperwidth256mm
% \newlength\hackpaperheight \hackpaperheight96mm
% \RequirePackage{everyshi}
% \EveryShipout
%   {\special{papersize=\the\hackpaperwidth,\the\hackpaperheight}}

% \usetheme{AnnArbor}
% \usetheme{Antibes}
% \usetheme{Bergen}
% \usetheme{Berkeley}
% \usetheme{Berlin}
% \usetheme{Boadilla}
\usetheme{boxes}
% \usetheme{CambridgeUS}
% \usetheme{Copenhagen}
% \usetheme{Darmstadt}
% \usetheme{default}
% \usetheme{Dresden}
% \usetheme{Frankfurt}
% \usetheme{Goettingen}
% \usetheme{Hannover}
% \usetheme{Ilmenau}
% \usetheme{JuanLesPins}
% \usetheme{Luebeck}
% \usetheme{Madrid}
% \usetheme{Malmoe}
% \usetheme{Marburg}
% \usetheme{Montpellier}
% \usetheme{PaloAlto}
% \usetheme{Pittsburgh}
% \usetheme{Rochester}
% \usetheme{Singapore}
% \usetheme{Szeged}
% \usetheme{Warsaw

% \usefonttheme{default}
\usefonttheme{professionalfonts}
% \usefonttheme{serif}
% \usefonttheme{structurebold}
% \usefonttheme{structureitalicserif}
% \usefonttheme{structuresmallcapsserif}

% \useinnertheme{circles}
% \useinnertheme{default}
% \useinnertheme{inmargin}
% \useinnertheme{rectangles}
% \useinnertheme{rounded}

% \setbeamercovered{transparent}

\beamertemplatenavigationsymbolsempty

\setbeamertemplate{footline}{\hfill\vbox{\hbox{\color{black!50!white}\strut\insertframenumber/22\hspace{1em}}\vspace{1em}}}
\setbeamertemplate{itemize item}{\bullet}
\setbeamertemplate{itemize subitem}{\subbullet}
\setbeamertemplate{itemize subsubitem}{\subsubbullet}

% \setbeamercolor{alert}{yellow}
% \setbeamertemplate{alert text end}{!}
% \newcommand<>{alert}[1]{#1}

% \def\alert<#1>#2{\only{#1}

\usepackage{settobox}

\newbox\alertedbox
\newlength\alertedwidth
\newlength\alertedheight
\newlength\alerteddepth
\setlength{\fboxrule}{1pt}
\makeatletter
\newenvironment{framed}%
  {%
    \usebeamercolor[fg]{alerted text}%
    \setbox\alertedbox\hbox\bgroup\color@@setgroup\(%
  }%
  {%
    \)\color@@endgroup\egroup%
    \settoboxwidth{\alertedwidth}{\alertedbox}%
    \settoboxdepth{\alerteddepth}{\alertedbox}%
    \settoboxheight{\alertedheight}{\alertedbox}%
    % \fbox{\usebox{\alertedbox}}
    % \rlap{!}\usebox{\alertedbox}\rlap{!}%
    \tikz{%
      \path[use as bounding box] (0, 0);
      \path[draw, thick] %
        (-2mm, -1\alerteddepth - 2mm) -- %
        (\alertedwidth + 2mm, -1\alerteddepth - 2mm) -- %
        (\alertedwidth + 2mm, \alertedheight + 2mm) -- %
        (-2mm, \alertedheight + 2mm) -- %
        cycle;%
    }%
    \usebox{\alertedbox}%
  }%
\makeatother

\setbeamertemplate{alerted text begin}{\begin{framed}}
\setbeamertemplate{alerted text end}{\end{framed}}

% \def\alert<#1>#2{\alt<#1>{\begin{framed}#2\end{framed}}{#2}}

\usepackage{xltxtra}
\setsansfont[Numbers=OldStyle]{Cambria}

\usepackage{unicode-math}
\setmathfont[Numbers=OldStyle]{Cambria Math}

\usepackage{tikz}
\usetikzlibrary{trees,positioning,arrows}
% \usepackage{tikz-qtree}

\newcommand{\clap}[1]{\hbox to0pt{\hss#1\hss}}

\renewcommand{\diamond}[2][0.1]{
  \makebox[1.5em][c]{
    \hspace{-0.2em}\begin{tikzpicture}[scale=0.3141592,baseline=-5,line width=0.9pt]
    \draw (0,-1) -- (1,0) -- (0, 1) -- (-1, 0) -- cycle;
    \draw (0,-0.5+#1) node{\smash{\clap{\small #2}}};
    \end{tikzpicture}}}

\newcommand{\smalldiamond}{
  \makebox[1.5em][c]{
    \hspace{-0.2em}\begin{tikzpicture}[scale=0.271828183,baseline=-5,line width=0.9pt]
    \draw (0,-1) -- (1,0) -- (0, 1) -- (-1, 0) -- cycle;
    \end{tikzpicture}}}
    
\newcommand{\rdiamond}[2][0.1]{
  \makebox[1.5em][c]{
    \hspace{-0.2em}\begin{tikzpicture}[scale=0.3141592,baseline=-5,line width=0.9pt]
    \draw (0,-1) -- (1,0) -- (0, 1);
    \draw (0,-0.5+#1) node{\smash{\small #2}};
    \end{tikzpicture}}}

\newcommand{\ldiamond}[2][0.1]{
  \makebox[1.5em][c]{
    \hspace{-0.2em}\begin{tikzpicture}[scale=0.3141592,baseline=-5,line width=0.9pt]
    \draw (0,-1) -- (-1,0) -- (0, 1);
    \draw (0,-0.5+#1) node{\smash{\small #2}};
    \end{tikzpicture}}}

\def\unicode{\char"}

\renewcommand{\bullet}
  {\begin{tikzpicture}[scale=0.157079633,baseline=-5,line width=0.9pt]
     \fill (0,-1) -- (1.73205081,0) -- (0,1) -- cycle;
   \end{tikzpicture}}
    
\let\subbullet\bullet
\let\subsubbullet\subbullet

%include polycode.fmt

%subst code a = "\begin{postit}\small\begin{hscode}\SaveRestoreHook'n" a "\ColumnHook'n\end{hscode}\resethooks'n\end{postit}"

%format \     = "\mathrm{\lambda}\;\!" 
%format alpha = "\alpha"
%format beta  = "\beta"
%format gamma = "\gamma"
%format delta = "\delta"
%format <|>   = "\diamond{|}"
%format <$$>  = "\diamond{\$$}"
%format <*>   = "\diamond{$$\ast$$}"
%format  *>   = "\rdiamond{$$\ast$$}"
%format <*    = "\ldiamond{$$\ast$$}"
%format <>    = "\smalldiamond"
%format ...   = "\ldots"
%format <$$   = "\ldiamond{\$$}"
%format <+>   = "\diamond{$$+$$}"

% template haskell
%format (QUOTE(x))    =  "\llbracket" x "\rrbracket"
%format (CONSTR(x))   =  "{}^\prime\!" x
%format (TYPE(x))     =  "\prime\prime\!" x
%format (SPLICE(x))   =  "\$$(" x ")"
%format (SPLICE1(x))  =  "\$$" x

% subst string a = "{\rm \unicode 0022 " a "\unicode 0022}"

\renewcommand{\Conid}[1]{\text{\it #1}}
\renewcommand{\Varid}[1]{\text{\it #1}}

\setbeamercolor{postit}{fg=black,bg=yellow!70!white}


\newenvironment{postit}
  {\begin{beamercolorbox}[leftskip=1em, rightskip=1em]{postit}}
  {\end{beamercolorbox}}

\let\oldhscode\hscode
\let\endoldhscode\endhscode

$if(verbatim-in-note)$
\usepackage{fancyvrb}
$endif$
$if(fancy-enums)$
% Redefine labelwidth for lists; otherwise, the enumerate package will cause
% markers to extend beyond the left margin.
\makeatletter\AtBeginDocument{%
  \renewcommand{\@listi}
    {\setlength{\labelwidth}{4em}}
}\makeatother
\usepackage{enumerate}
$endif$
$if(tables)$
\usepackage{array}
% This is needed because raggedright in table elements redefines \\:
\newcommand{\PreserveBackslash}[1]{\let\temp=\\#1\let\\=\temp}
\let\PBS=\PreserveBackslash
$endif$
$if(strikeout)$
\usepackage[normalem]{ulem}
$endif$
$if(subscript)$
\newcommand{\textsubscr}[1]{\ensuremath{_{\scriptsize\textrm{#1}}}}
$endif$
$if(url)$
\usepackage{url}
$endif$
$if(graphics)$
\usepackage{graphicx}
$endif$

% \setlength{\parindent}{0pt}
% \setlength{\parskip}{6pt plus 2pt minus 1pt}
$if(numbersections)$
$else$
\setcounter{secnumdepth}{0}
$endif$
$if(verbatim-in-note)$
\VerbatimFootnotes % allows verbatim text in footnotes
$endif$
$for(header-includes)$
$header-includes$
$endfor$

$if(title)$\title$if(shorttitle)$[$shorttitle$]$endif${$title$}$endif$
$if(author)$\author$if(shortauthor)$[$for(shortauthor)$$shortauthor$$sep$, $endfor$]$endif${$for(author)$$author$$sep$\\$endfor$}$endif$
$if(institute)$\institute$if(shortinstitute)$[$shortinstitute$]$endif${$institute$}$endif$
$if(date)$\date$if(shortdate)$[$shortdate$]$endif${$date$}$endif$
$if(logo)$\logo{$logo$}$endif$
$if(titlegraphic)$\titlegraphic{$titlegraphic$}$endif$
$if(subject)$\subject{$subject$}$endif$
$if(keyword)$\keywords{$for(keyword)$$keyword$$sep$, $endfor$}$endif$

\let\emph\textbf

\begin{document}
\AtBeginNote{
\scriptsize
} 
\abovedisplayskip 0cm
\belowdisplayskip 0cm
\mathindent 0mm
\def\alert<#1>#2{#2}
$for(include-before)$
$include-before$

$endfor$
$body$
$for(include-after)$

$include-after$
$endfor$
\end{document}