%Para slide em "Wide-Screen" usar:
\documentclass[aspectratio=169]{beamer} 
%Para slide "quadrado" usar:
%\documentclass{beamer} 
\usepackage{tikz}
%Elaborado por Mateus Moro Lumertz
\author{mateuslumertz}
\definecolor{cor1}{RGB}{0,100,166}
\definecolor{cor2}{RGB}{100,195,213}
\definecolor{cor5}{RGB}{150,203,226}
\definecolor{cor3}{RGB}{30,130,186}
\definecolor{cor4}{RGB}{40,185,218}
\definecolor{preto}{RGB}{0,0,0}
\definecolor{branco}{RGB}{255,255,255}
% Configuração das Cores
\setbeamercolor{paleta1}{fg=cor1,bg=white}
\setbeamercolor{paleta2}{fg=cor1,bg=white}
\setbeamercolor{estrutura}{fg=cor1,bg=white}
\setbeamercolor{titulo_rodape}{fg=black,bg=white}
\setbeamercolor{data_rodape}{fg=gray,bg=white}
\setbeamercolor{frametitle}{fg=cor1,bg=branco}
% Modelo do rodapé
\defbeamertemplate*{footline}{mytheme}{%
  \leavevmode%
  \hbox{\begin{beamercolorbox}[wd=.5\paperwidth,ht=2.5ex,dp=1.125ex,leftskip=.3cm,rightskip=.3cm]{titulo_rodape}%
    \makebox[2em][l]{{\usebeamerfont{titulo_rodape}\textcolor{cor1}{\insertframenumber}}}%
    {\usebeamercolor{titulo_rodape}\insertshorttitle}
  \end{beamercolorbox}%
  \begin{beamercolorbox}[wd=.2\paperwidth,ht=2.5ex,dp=1.125ex,leftskip=.3cm,rightskip=.3cm]{data_rodape}%
    \usebeamerfont{data_rodape}\insertshortdate%
  \end{beamercolorbox}%
  \begin{beamercolorbox}[wd=.3\paperwidth,ht=2.5ex,dp=1.125ex,leftskip=.3cm,rightskip=.3cm,right]{titulo_rodape}%
    \includegraphics[width=.2\paperwidth,height=7ex,keepaspectratio]{imagens/logo.png}\hspace*{2em}%
  \end{beamercolorbox}}%
  \vskip0pt%
  
    \begin{tikzpicture}[remember picture,overlay]
  
    \filldraw[cor2]
    ([xshift=-12cm,yshift=7.5cm]current page.south east)--
    ([xshift=-16cm,yshift=7.5cm]current page.south east)--
    ([xshift=-16cm,yshift=7.62cm]current page.south east)--
    ([xshift=-12cm,yshift=7.62cm]current page.south east)-- cycle
    ;
    \filldraw[cor3]
    ([xshift=-8cm,yshift=7.5cm]current page.south east)--
    ([xshift=-12cm,yshift=7.5cm]current page.south east)--
    ([xshift=-12cm,yshift=7.62cm]current page.south east)--
    ([xshift=-8cm,yshift=7.62cm]current page.south east)-- cycle
    ;
    \filldraw[cor4]
    ([xshift=-4cm,yshift=7.5cm]current page.south east)--
    ([xshift=-8cm,yshift=7.5cm]current page.south east)--
    ([xshift=-8cm,yshift=7.62cm]current page.south east)--
    ([xshift=-4cm,yshift=7.62cm]current page.south east)-- cycle
    ;
    \filldraw[cor5]
    ([xshift=-0cm,yshift=7.5cm]current page.south east)--
    ([xshift=-4cm,yshift=7.5cm]current page.south east)--
    ([xshift=-4cm,yshift=7.62cm]current page.south east)--
    ([xshift=-0cm,yshift=7.62cm]current page.south east)-- cycle
    ;
  \end{tikzpicture}
  
}
% Slide de Título
\defbeamertemplate*{title page}{mytheme}[1][]
{%
  \begin{tikzpicture}[remember picture,overlay]
    \filldraw[cor1]
    (current page.north west) --
    ([yshift=-12cm]current page.north west) --
    ([xshift=-4cm,yshift=-12cm]current page.north east) {[rounded corners=15pt]--
    ([xshift=-4cm,yshift=3cm]current page.south east)} --
    ([yshift=3cm]current page.south west) --
    (current page.south west) --
    (current page.south east) --
    (current page.north east) -- cycle
    ;
  \filldraw[branco]
    (current page.north west) --
    ([yshift=-2.15cm]current page.north west) --
    ([xshift=-3cm,yshift=-2.15cm]current page.north east) {[rounded corners=15pt]--
    ([xshift=-3cm,yshift=3cm]current page.south east)} --
    ([yshift=3cm]current page.south west) --
    (current page.south west) --
    (current page.south east) --
    (current page.north east) -- cycle
    ;
    \filldraw[cor2]
    ([xshift=-0.25cm,yshift=3cm]current page.south east)--
    ([xshift=-2.75cm,yshift=3cm]current page.south east)--
    ([xshift=-2.75cm,yshift=3.85cm]current page.south east)--
    ([xshift=-0.25cm,yshift=3.85cm]current page.south east)-- cycle
    ;
    \filldraw[cor3]
    ([xshift=-0.25cm,yshift=4cm]current page.south east)--
    ([xshift=-2.75cm,yshift=4cm]current page.south east)--
    ([xshift=-2.75cm,yshift=4.85cm]current page.south east)--
    ([xshift=-0.25cm,yshift=4.85cm]current page.south east)-- cycle
    ;
    \filldraw[cor4]
    ([xshift=-0.25cm,yshift=5cm]current page.south east)--
    ([xshift=-2.75cm,yshift=5cm]current page.south east)--
    ([xshift=-2.75cm,yshift=5.85cm]current page.south east)--
    ([xshift=-0.25cm,yshift=5.85cm]current page.south east)-- cycle
    ;
    \filldraw[cor5]
    ([xshift=-0.25cm,yshift=6cm]current page.south east)--
    ([xshift=-2.75cm,yshift=6cm]current page.south east)--
    ([xshift=-2.75cm,yshift=6.85cm]current page.south east)--
    ([xshift=-0.25cm,yshift=6.85cm]current page.south east)-- cycle
    ;
  \node[text=branco,anchor=south west,font=\sffamily\LARGE,text width=.68\paperwidth] 
  at ([xshift=10pt,yshift=-0.5cm]current page.west)
  (title)
  {\raggedright\inserttitle};  
  
  \node[text=cor1,anchor=south west,font=\sffamily\small,text width=.75\paperwidth] 
  at ([xshift=10pt,yshift=3.6cm]current page.west)
  (title)
  {\raggedright Departamento, Secção, Divisão, Unidade, etc};  
  
  
  % \node[anchor=west]
  %at ([xshift=10.1cm,yshift=8.5cm]current page.south west)
  %{\includegraphics[height=1.5cm]{imagens/logo.png}};
  
  \node[anchor=east]
  at ([xshift=-0.15cm,yshift=-1cm]current page.north east)
  {\includegraphics[width=2.5cm]{imagens/logo.png}};
  
  \node[text=preto,font=\large\sffamily,anchor=south west]
  at ([xshift=30pt,yshift=0.5cm]current page.south west)
  (date)
  {\insertdate};
  \node[text=preto,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 itemize templates
\setbeamertemplate{itemize item}[circle]
\setbeamercolor{itemize item}{fg=cor3,bg=white}
\setbeamercolor{itemize subitem}{fg=cor4,bg=white}
\setbeamercolor{itemize subsubitem}{fg=cor2,bg=white}
\title[Título Rodapé]{Título da Apresentação teste Título da Apresentação teste
}
\author{Autor}
\date{\today}
\begin{document}
\begin{frame}[plain]
\maketitle
\end{frame}
%Slide 1
\begin{frame}
\frametitle{Título do Slide}
\framesubtitle{Subtítulo do Slide}
Este é um template em latex-beamer
\begin{itemize}
  \item item1
  \item item2
  \begin{itemize}
    \item subitem1
    \item subitem2
  \end{itemize}
  \item item3
\end{itemize}
\end{frame}
%Slide 2
\begin{frame}
\frametitle{Título do Slide}
\framesubtitle{Subtítulo do Slide}
Exemplo de utilização de uma figura
\begin{figure}
    \centering
    \includegraphics[width=0.5\linewidth]{imagens/logo.png}
\end{figure}
\end{frame}
%Slide 3
\begin{frame}
\frametitle{Título do Slide}
\framesubtitle{Subtítulo do Slide}
\begin{center}
\LARGE OBRIGADO!!!
\end{center}
\end{frame}
\end{document}