\documentclass[20pt]{beamer}

% 
% adjusting theme
%

\usetheme{default}
\useinnertheme{circles}
\beamertemplatenavigationsymbolsempty
\usepackage{fontspec}
    \setsansfont{Qtpi} % <- change font here! pick whatever is installed and known to your system
\setbeamersize
{
    text margin left=1.5cm,
    text margin right=1.7cm
}

%
% define custom colors
%

\definecolor{fore}{HTML}{F9F2D7}
\definecolor{back}{HTML}{1E1124}
\definecolor{title}{HTML}{E36F99}
\definecolor{link}{HTML}{DFCC81}

%
% themeing of beamer colors and fonts
%

\setbeamercolor{titlelike}{fg=title}
\setbeamercolor{normal text}{fg=fore,bg=back}
\setbeamercolor{section in toc}{fg=fore}
\setbeamercolor{item}{fg=title}
\setbeamertemplate{frametitle}{%
    \vskip0.5cm\hskip-0.5cm\insertframetitle}

%
% define listings
%

\usepackage{listings}
\definecolor{keywords}{RGB}{255,0,90}
\definecolor{comments}{RGB}{60,179,113}
\lstset{basicstyle=\footnotesize\ttfamily}
\lstset{language=[GNU]C++,
keywordstyle=\color{keywords},
commentstyle=\color{comments}\emph}

%
% hyper refs
%

\usepackage{hyperref}
    \hypersetup{
        colorlinks=true,
        linkcolor=link,
        filecolor=link,
        citecolor=link,      
        urlcolor=link,
    }

%
% document
%
\title{vewwy pawfessional \\ pawsentation >w<}
\subtitle{by Isabell Pflug}

\begin{document}

% 
% title frame
% 

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

%
% frame toc
%

\begin{frame}{Outline}
    \color{fore} \tableofcontents
\end{frame}

%
% frame 42
%

\section{Part 42}
\begin{frame}[fragile]{Part 42}
    The answer to everything...
\end{frame}

%
% code frame
%

\section{C++ example Code}
\begin{frame}[fragile]{C++ example Code}
% code example
    \begin{lstlisting}
# include <iostream>
int main() {
    std::cout << "Hewwo Worwld!" \
              << std::endl;
    return 0;
}
    \end{lstlisting}
\end{frame}

%
% credits frame
%

\section{Credits}
\begin{frame}[fragile]{Credits}
	\begin{itemize}
        \item LaTeX beamer default theme customisation by \href{https://git.floating-in.space/isabell}{Isabell Pflug}
        \item \href{https://github.com/zephyo/5fonts10hours/tree/master/qtpi}{font (qtpi)} by \href{https://github.com/zephyo}{Angela He}, \href{https://creativecommons.org/licenses/by/3.0/us/}{Creative Commons Attribution 3.0}
	\end{itemize}
\end{frame}
\end{document}
