diff --git a/beamer-config.tex b/beamer-config.tex
new file mode 100644
index 0000000..b3d259c
--- /dev/null
+++ b/beamer-config.tex
@@ -0,0 +1,175 @@
+\usepackage[utf8]{inputenc}
+\usepackage[T1]{fontenc}
+\usepackage[ngerman,english]{babel}
+
+% -- https://www.ctan.org/pkg/newtx?lang=en
+\usepackage{newtxtext,newtxmath}
+
+% -- https://www.ctan.org/pkg/scrextend
+\usepackage{scrextend}
+
+\usepackage{booktabs}
+\usepackage{tabularx}
+\usepackage{threeparttable}
+\usepackage{multirow}
+
+\usepackage{pifont}
+
+% get layout information
+\usepackage{layout}
+
+\usepackage{rotating}
+\usepackage{adjustbox}
+\usepackage{setspace}
+\usepackage{ragged2e}
+\usepackage{lipsum}
+\usepackage{blindtext}
+\usepackage{calc}
+
+\usepackage{eqnarray,amsmath}
+\usepackage[linesnumbered]{algorithm2e}
+
+% -- Absolute positions 
+\usepackage[absolute,overlay]{textpos}
+
+\usepackage{tcolorbox}
+\tcbuselibrary{most}
+
+\usepackage{soul}
+
+%improve wrapping of URLs - hint by http://tex.stackexchange.com/a/10419/9075
+\makeatletter
+\g@addto@macro{\UrlBreaks}{\UrlOrds}
+\makeatother
+
+
+% -------------------------------------------------------------
+% Hyperreferences
+% -------------------------------------------------------------
+\usepackage{hyperref}
+\hypersetup{colorlinks=true,linkcolor=,urlcolor=gray70,citecolor=blue1}
+
+
+% -------------------------------------------------------------
+% Bibliography
+% -------------------------------------------------------------
+
+\usepackage[%
+  %sorting=debug, 
+  %natbib=true,
+  %backend=biber,bibencoding=utf8,
+  backend=bibtex8,bibencoding=ascii,language=auto,natbib=true,%maxbibnames=10,
+  sorting=nyt,
+  style=alphabetic,
+  maxalphanames=1
+  %minnames=3,
+  %maxnames=6,
+  %doi=false
+]{biblatex}
+
+% -- remove plus sign in labels [Stö+18]
+\renewcommand*{\labelalphaothers}{}
+
+% -- make bibliography entries smaller
+\renewcommand\bibfont{\scriptsize}
+% -- and kill the abominable icon
+\setbeamertemplate{bibliography item}[text]
+
+%\addbibresource{bibliography.bib}
+%\addbibresource{bibliography-2.bib}
+
+
+
+
+% -------------------------------------------------------------
+%  Minted Code Listing
+% -------------------------------------------------------------
+% Need the following Python package:
+%  - Pygments (http://pygments.org/)
+%
+% Requires the -shell-escape flag when calling LaTeX !!!! 
+%
+% List all styles: 
+%    $ pygmentize -L styles
+% \usemintedstyle{monokai}
+%
+% List all Languages: 
+%    $ pygmentize -L lexers
+
+
+%\usepackage[titles]{tocloft}
+%\newlistof{listing}{lol}{Listings}
+%\usepackage[newfloat]{minted}
+%\usepackage{caption}
+%\renewcommand{\cftlistingpresnum}{Listing~}
+%\setlength{\cftlistingnumwidth}{2,8cm}
+
+\usepackage{minted}
+
+
+% -------------------------------------------------------------
+% Captions
+% -------------------------------------------------------------
+\usepackage{caption}
+\captionsetup{%
+  justification=raggedright,
+  singlelinecheck=false
+} 
+
+
+% -------------------------------------------------------------
+
+
+\renewcommand\thefootnote{\textbf{\textcolor{blue1}{\arabic{footnote}}}}
+\renewcommand{\footnotesize}{\fontsize{6pt}{7pt}\selectfont}
+
+%% Insert line break in algorithm
+\newcommand{\WRP}{\par\qquad\(\hookrightarrow\)\enspace}
+
+%\newcommand{\showHorizontalNavBar}{}
+\def\showHorizontalNavBar{}
+
+
+% -------------------------------------------------------------
+% Color Boxes
+% -------------------------------------------------------------
+
+\newtcolorbox{shadowbox1}[2][]{%
+    enhanced,
+    size=small,
+    width=#2, 
+    colback=gray1, 
+    colframe=gray1, 
+    sharp corners, 
+    drop small lifted shadow=black,
+    #1
+}
+
+
+% -------------------------------------------------------------
+% Images
+% -------------------------------------------------------------
+
+\newcommand{\rotimagewithsource}[3]{%
+\begin{figure}
+  \hypersetup{urlcolor=gray50}
+  \setbeamerfont{caption}{size=\fontsize{2pt}{3pt}\selectfont}
+  \setbeamercolor{caption}{fg=gray50}
+  \captionsetup{labelformat=empty,justification=raggedright,singlelinecheck=false}%
+  \begin{adjustbox}{addcode={\begin{minipage}{\width}}{\caption{#3}\end{minipage}},#1,center}
+      #2
+  \end{adjustbox}
+  \addtocounter{figure}{-1}
+\end{figure}
+}
+
+
+\newcommand{\rotimagewithcaption}[3]{%
+  \begin{figure}
+    \begin{adjustbox}{addcode={\begin{minipage}{\width}}{\caption{#3}\end{minipage}},#1,center}
+      #2
+    \end{adjustbox}
+  \end{figure}
+}
+
+
diff --git a/beamerthemecleangreen.sty b/beamerthemecleangreen.sty
new file mode 100644
index 0000000..37d0b13
--- /dev/null
+++ b/beamerthemecleangreen.sty
@@ -0,0 +1,263 @@
+%
+% Latex-Beamer theme CleanGreen
+%
+% Author: André Conrad
+% Date: 2023-02-23
+% Version: 0.1
+%
+
+
+\mode<presentation>
+
+
+% ---------------------------------------
+%% Loading packages
+% ---------------------------------------
+\RequirePackage{tikz}
+\usetikzlibrary{%
+  mindmap,
+  trees
+}
+
+\RequirePackage{csquotes}
+
+
+
+%Define a reference depth. 
+%You can choose either relative or absolute.
+%--------------------------
+\newlength{\DepthReference}
+%\settodepth{\DepthReference}{g}%relative to a depth of a letter.
+\setlength{\DepthReference}{2pt}%absolute value.
+
+%Define a reference Height. 
+%You can choose either relative or absolute.
+%--------------------------
+\newlength{\HeightReference}
+%\settoheight{\HeightReference}{T}
+\setlength{\HeightReference}{6pt}
+
+%--------------------------
+\newlength{\Width}%
+\newcommand{\navbox}[2][red]%
+{%
+    \settowidth{\Width}{#2}%
+    %\setlength{\fboxsep}{0pt}%
+    \colorbox{#1}%
+    {%      
+        \raisebox{-\DepthReference}%
+        {%
+            \parbox[b][\HeightReference+\DepthReference][c]{\Width}{\centering#2}%
+        }%
+    }%
+}
+\setlength{\fboxsep}{1pt}
+
+
+% ---------------------------------------
+%% Colors
+% ---------------------------------------
+\definecolor{gray20}{HTML}{CCCCCC}
+\definecolor{gray70}{HTML}{4C4C4C}
+
+\definecolor{green1}{HTML}{A0DDCE}
+\definecolor{green2}{HTML}{E9F8F3}
+
+\definecolor{blue1}{HTML}{0070C0}
+\definecolor{blue2}{HTML}{004C97}
+
+\definecolor{lightbrown1}{HTML}{E3DBD3}
+\definecolor{brown1}{HTML}{AD8f67}
+
+
+\definecolor{webgreen}{rgb}{0,.5,0}
+\definecolor{webbrown}{rgb}{.6,0,0}
+
+\definecolor{gray1}{rgb}{.92,.92,.92}
+\definecolor{gray2}{rgb}{.85,.85,.85}
+\definecolor{gray50}{rgb}{.5,.5,.5}
+
+\definecolor{applegreen}{rgb}{0.55, 0.71, 0.0}
+\definecolor{brickred}{rgb}{0.8, 0.25, 0.33}
+\definecolor{darklavender}{rgb}{0.45, 0.31, 0.59}
+\definecolor{charcoal}{rgb}{0.21, 0.27, 0.31}
+
+% Title slide
+\setbeamercolor*{title page header}{fg=gray70}
+\setbeamercolor*{author}{fg=gray70}
+\setbeamercolor*{date}{fg=gray70}
+
+% Framtitle
+\setbeamercolor*{frametitle}{fg=gray70,bg=white}
+
+% Footer
+\setbeamercolor{footline}{fg=gray70,bg=white}
+
+% List items
+\setbeamercolor*{item}{fg=black}
+\setbeamercolor*{enumerate item}{fg=black}
+
+% Blocks
+\setbeamercolor{block title}{fg=blue1}
+%\setbeamercolor{block body}{bg=green2}
+
+% Caption
+\setbeamercolor{caption name}{fg=blue1}
+\setbeamercolor{caption}{fg=gray70}
+
+% Table of Content
+\setbeamercolor{section in toc}{fg=blue1}
+\setbeamercolor{subsection in toc}{fg=blue1}
+
+% Bibliography
+\setbeamercolor*{bibliography item}{fg=black}
+\setbeamercolor*{bibliography entry title}{fg=blue2}
+\setbeamercolor*{bibliography entry author}{fg=black}
+\setbeamercolor*{bibliography entry location}{fg=black}
+\setbeamercolor*{bibliography entry note}{fg=black}
+
+
+% ---------------------------------------
+%% Font Size
+% ---------------------------------------
+
+\setbeamerfont{frametitle}{size=\huge}
+\setbeamerfont{framesubtitle}{size=\normalsize}
+
+\setbeamerfont{title}{size=\huge}
+\setbeamerfont{subtitle}{size=\normalsize}
+\setbeamerfont*{author}{size=\normalsize}
+\setbeamerfont*{date}{size=\small}
+\setbeamerfont*{frametitle}{size=\huge}
+\setbeamerfont*{footline}{size=\tiny}
+\setbeamerfont*{institute}{size=\footnotesize}
+
+%\setbeamerfont{itemize/enumerate body}{size=\Large}
+%\setbeamerfont{itemize/enumerate subbody}{size=\Large}
+%\setbeamerfont{itemize/enumerate subsubbody}{size=\large}
+\setbeamerfont{enumerate item}{series=\bfseries}
+\setbeamerfont{description item}{series=\bfseries}
+
+\setbeamerfont{caption}{size=\tiny}
+
+% Table of Content
+\setbeamerfont{section in toc}{size=\normalsize}
+\setbeamerfont{subsection in toc}{size=\normalsize}
+
+\setbeamerfont{section number projected}{%
+  family=\rmfamily,series=\bfseries,size=\normalsize}
+\setbeamercolor{section number projected}{bg=green1,fg=black}
+
+% ball, circle and square
+\setbeamertemplate{sections/subsections in toc}[circle]
+
+
+% ---------------------------------------
+%% Frame (inner/outer)
+% ---------------------------------------
+
+\setbeamertemplate{navigation symbols}{}
+\setbeamertemplate{caption}[numbered]
+
+\setbeamertemplate{enumerate item}{\textbf{\arabic{enumi}.}}
+\setbeamertemplate{enumerate subitem}{\textbf{\arabic{enumii}.}}
+
+\setbeamersize{text margin left=16pt,text margin right=16pt}
+
+
+% -----------------------
+%% Title Page
+% -----------------------
+\defbeamertemplate*{title page}{cleangreen}
+{
+    \centering
+   
+    \vskip 1cm%
+   
+    \begin{beamercolorbox}[center,sep=8pt]{title page header}
+      \usebeamerfont{title}\textbf{\inserttitle}\par%
+      \vskip 0.25cm%
+      \usebeamerfont{subtitle}\insertsubtitle
+    \end{beamercolorbox}%
+    
+    \textcolor{green1}{\rule{.96\textwidth}{1.5pt}}
+    
+    \vskip 0.75cm%
+    
+    \begin{beamercolorbox}[center]{author}
+      \usebeamerfont{author}\insertauthor\\[2ex]
+      \usebeamerfont{institute}\insertinstitute\\[5ex]
+      \usebeamerfont{date}\insertdate
+    \end{beamercolorbox}
+}
+
+
+% -----------------------
+%% Definition - Horizontal Nav Bar
+% -----------------------
+
+\setbeamertemplate{section in head/foot}{%
+    %\colorbox{green2}{\strut\bfseries\insertsectionhead}
+    \navbox[green2]{\bfseries\insertsectionhead}
+}
+
+\setbeamertemplate{section in head/foot shaded}{%
+    %\color{gray2}\insertsectionhead
+    \navbox[white]{\bfseries\color{gray2}\insertsectionhead}
+}
+      
+
+% -----------------------
+%% Frametitle
+% -----------------------
+\defbeamertemplate*{frametitle}{cleangreen}
+{
+  \begin{beamercolorbox}[left, ht=36pt, wd=\paperwidth, leftskip=16pt, rightskip=16pt]{frametitle}
+    \ifx\insertframesubtitle\@empty%
+      \begin{tikzpicture}
+        \draw (0,0) -- (\textwidth,0) [line width=1pt, green2];
+        \draw (0,4pt) node [anchor=south west,inner sep=0mm, text depth=1mm] {\usebeamerfont{frametitle}\insertframetitle};
+      \end{tikzpicture}
+    \else%
+      \begin{tikzpicture}
+        \draw (0,0) -- (\textwidth,0) [line width=1pt, green2];
+        \draw (0,1pt) node [anchor=south west,inner sep=0mm, text depth=1mm] {\small\insertframesubtitle};
+        \draw (0,13pt) node [anchor=south west,inner sep=0mm, text depth=1mm] {\Large\insertframetitle};
+      \end{tikzpicture}
+    \fi
+    \ifx\showHorizontalNavBar\empty%
+      \vspace*{-18pt}
+    \else
+      \hspace*{-13.24pt}
+      \footnotesize
+      \insertnavigation{\textwidth}
+    \fi
+  \end{beamercolorbox}
+}
+
+
+% -----------------------
+%% Footline
+% -----------------------
+\newcommand{\footlinetext}[1]{\def\insertfootlinetext{#1}}
+
+\defbeamertemplate*{footline}{cleangreen}
+{
+  \begin{beamercolorbox}[left, ht=20pt, wd=\textwidth, leftskip=16pt, rightskip=16pt]{footline}%
+    \usebeamerfont{footline}
+    \ifx\insertframetitle\@empty%
+        %\hfill\insertpagenumber\vspace{2.75mm}
+        \raggedleft\insertframenumber~/~\inserttotalframenumber\hspace{12.25pt}\vspace{8pt}
+    \else%
+      \begin{tikzpicture}
+        \draw (0,0) -- (423pt,0) [line width=1pt, green2];
+        \draw (-3pt,0) node [anchor=north west, inner sep=3pt] {\includegraphics[height=14pt]{gfx/fernuni_hagen_logo.jpg}};
+        \draw (100pt,-8pt) node [anchor=north west, inner sep=0mm, text depth=1mm] {\insertfootlinetext};
+        \draw (423pt,-8pt) node [anchor=north east,inner sep=0mm, text depth=1mm] {\insertframenumber~/~\inserttotalframenumber};
+     \end{tikzpicture}
+    \fi
+  \end{beamercolorbox}
+}
+
+\mode<all>
+
diff --git a/thesis-beamer.pdf b/thesis-beamer.pdf
new file mode 100644
index 0000000..e5e3110
Binary files /dev/null and b/thesis-beamer.pdf differ
diff --git a/thesis-beamer.tex b/thesis-beamer.tex
new file mode 100644
index 0000000..5fa7498
--- /dev/null
+++ b/thesis-beamer.tex
@@ -0,0 +1,68 @@
+\documentclass[aspectratio=169]{beamer}
+\input{beamer-config}
+\usetheme{cleangreen}
+
+\include{marco-galster-config}
+\addbibresource{expose-ref.bib}
+
+% ACHTUNG: Damit sich die Datei sauber im Visual Studio Code übersetzten lässt, muss in den Benutzer-Einstellungen
+%   das Element "latex-workshop.latex.tools" aufgenommen werden und der erscheinende Eintrag für latexmk bei den
+%   args am Anfang um den folgenden Eintrage erweitert werden:
+%       "-shell-escape"
+
+\title{\myTitle}
+%\subtitle{}
+\author[M. Galster]{\myName}
+\footlinetext{\insertshortauthor \hspace{4em} \inserttitle}
+\institute{University~of~Hagen,~Germany}
+\date{\myTime}
+
+\begin{document}
+\selectlanguage{ngerman}
+
+% -- SLIDE -- Title
+\begin{frame}[plain]
+\titlepage
+\end{frame}
+
+% -- SLIDE -- TOC
+\begin{frame}[c]
+    \frametitle{Übersicht}
+
+    %left space
+    \begin{addmargin*}{2.5em}
+        %enhance line space
+        \begin{spacing}{1}
+            \parbox{\linewidth}{%
+                \tableofcontents
+            }
+        \end{spacing}
+    \end{addmargin*}
+
+    \addtocounter{framenumber}{-1}
+
+\end{frame}
+
+% -- SLIDES --
+\section{Ausgangsproblem}
+\begin{frame}
+    \frametitle{Ausgangsproblem}
+
+    Anzeige der Schichten des Systems
+\end{frame}
+
+\begin{frame}
+    Definieren der Optimierungsansätze
+\end{frame}
+
+
+%% -- SLIDE -- REFERENCES
+% hier alle Keys aus der BIB einfügen, die mit dargestellt werden sollen
+\nocite{IbmOpenJPACaching2023,PostgresPro:Chap20.4:2023}
+% Für mehreren Seite bei den Referenzen ein ",allowframebreaks" in den [] hinzufügen
+\begin{frame}[t]
+    \frametitle{Referenzen}
+    \printbibliography[title=Referenzen]
+\end{frame}
+
+\end{document}
\ No newline at end of file