Nova SBE beamer template

\documentclass{beamer}
\usepackage{tikz}

\makeatother
\setbeamertemplate{footline}
{
	\leavevmode%
	\hbox{%
		\begin{beamercolorbox}[wd=.3\paperwidth,ht=2.25ex,dp=1ex,center]{author in head/foot}%
			\usebeamerfont{author in head/foot}\insertshortauthor
		\end{beamercolorbox}%
		\begin{beamercolorbox}[wd=.6\paperwidth,ht=2.25ex,dp=1ex,center]{title in head/foot}%
			\usebeamerfont{title in head/foot}\insertshorttitle
		\end{beamercolorbox}%
		\begin{beamercolorbox}[wd=.1\paperwidth,ht=2.25ex,dp=1ex,center]{date in head/foot}%
			\insertframenumber{} / \inserttotalframenumber\hspace*{1ex}
	\end{beamercolorbox}}%
	\vskip0pt%
}

\makeatletter
\setbeamertemplate{navigation symbols}{}





% setting some colors for the theme
\setbeamercolor{palette primary}{fg=black,bg=white}
\setbeamercolor{palette secondary}{fg=black,bg=white}
\setbeamercolor{structure}{fg=black,bg=white}
\setbeamercolor{title in head/foot}{fg=black,bg=white}
\setbeamercolor{date in head/foot}{fg=black,bg=white}



% definition of the title page template
\defbeamertemplate*{title page}{mytheme}[1][]
{%
  \begin{tikzpicture}[remember picture,overlay]
  \filldraw[white]
    (current page.north west) --
    (current page.north east) --
    ([xshift=0cm,yshift=-2cm]current page.north east)  --
    ([xshift=0cm,yshift=-2cm]current page.north west) -- cycle
    ;
   \node[opacity=0.2] at ([xshift=-1.2cm,yshift=-1cm]current page.north east) 
    {\includegraphics[width=45cm]{novabig2}};
  \node[text=black,anchor=south west,font=\sffamily\LARGE,text width=.6\paperwidth] 
  at ([xshift=-100pt,yshift=-1cm]current page.center)
  (title)
  {\raggedright\inserttitle};
    
    \node[text=black,anchor=south west,font=\sffamily\small,text width=.6\paperwidth] 
  at ([xshift=-100pt,yshift=-1.5cm]current page.center)
  (institute)
  {\raggedright\insertinstitute};
   
  \node[anchor=west]
  at ([xshift=-100pt,yshift=1cm]current page.south east)
  {\includegraphics[height=1.00cm]{nova}};
  \node[text=black,font=\large\sffamily,anchor=south west]
  at ([xshift=30pt,yshift=0.5cm]current page.south west)
  (date)
  {\insertdate};
  \node[text=black,font=\large\sffamily,anchor=south west]
  at ([yshift=5pt]date.north west)
  (author)
  {\insertauthor};
  \end{tikzpicture}%
}

% remove navigation symbols
\setbeamertemplate{navigation symbols}{}

% definition of the symbols used in itemize
\newcommand\mysymbol{%
  \begin{tikzpicture}[xscale=0.85]
\draw[black, thick]  circle (3.0 pt);             
  \end{tikzpicture}%
  }

% definition of the itemize templates
\defbeamertemplate*{itemize item}{mysymbol}{\small\raise0.5pt\hbox{\mysymbol}}
\defbeamertemplate*{itemize subitem}{mysymbol}{\footnotesize\raise0.5pt\hbox{\mysymbol}}
\defbeamertemplate*{itemize subsubitem}{mysymbol}{\footnotesize\raise0.5pt\hbox{\mysymbol}}

\title[Forecasting House Prices Using Dynamic Model Averaging]{Forecasting House Prices Using Dynamic Model Averaging}
\author{Robert Hill, Paulo Rodrigues}
\date{\today}

\institute{Nova SBE}

\begin{document}

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

\begin{frame}
\frametitle{A test frame title}
\framesubtitle{A test frame subtitle}
\begin{itemize}
  \item This is some item.
  \item Another item.
  \begin{itemize}
    \item A subitem.
    \item Another subitem.
  \end{itemize}
  \item Yet another item.
\end{itemize}

\end{frame}

\end{document}