commit f7788809a3e5548297d3412d6bd512492d909091
Author: Christian Clason <christian.clason@uni-due.de>
Date:   Mon Apr 12 14:32:37 2021 +0200

    initial commit

diff --git a/beamercolorthemekfu.sty b/beamercolorthemekfu.sty
new file mode 100644
index 0000000..2abc3ab
--- /dev/null
+++ b/beamercolorthemekfu.sty
@@ -0,0 +1,159 @@
+% Written by Kristan Bredies and Dirk Lorenz, 2005
+%            Christian Clason, 2014,2021
+
+\mode<presentation>
+
+\definecolor{hsk 15}{hsb}{.978,1,.89}
+\definecolor{kfu}{RGB}{255,213,0}
+\definecolor{nawi}{RGB}{6,120,180}
+\definecolor{math}{RGB}{144,174,181}
+\definecolor{model}{RGB}{204,167,108}
+\definecolor{gray1}{gray}{0.85}
+\definecolor{gray2}{gray}{0.70}
+\definecolor{gray3}{gray}{0.50}
+\definecolor{gray4}{gray}{0.20}
+
+\setbeamercolor{normal text}{fg=black,bg=white}
+\setbeamercolor{alerted text}{fg=hsk 15}
+
+\setbeamercolor{background canvas}{parent=normal text}
+\setbeamercolor{background}{parent=background canvas}
+
+\setbeamercolor{palette primary}{bg=kfu, fg=black}
+\setbeamercolor{palette secondary}{bg=gray1, fg=black}
+\setbeamercolor{palette tertiary}{bg=nawi, fg=black}
+\setbeamercolor{palette quaternary}{bg=model, fg=black}
+\setbeamercolor{palette sidebar primary}{use=palette primary}
+\setbeamercolor{palette sidebar secondary}{use=palette secondary}
+\setbeamercolor{palette sidebar tertiary}{use=palette tertiary}
+\setbeamercolor{palette sidebar quaternary}{use=palette quaternary}
+
+\setbeamercolor{math text}{}
+\setbeamercolor{math text inlined}{parent=math text}
+\setbeamercolor{math text displayed}{parent=math text}
+
+\setbeamercolor{normal text in math text}{}
+
+\setbeamercolor{structure}{fg=nawi}
+\setbeamercolor{local structure}{parent=structure}
+
+\setbeamercolor{titlelike}{parent=normal text}
+
+\setbeamercolor{title}{parent=titlelike,bg=}
+\setbeamercolor{title in head/foot}{parent=palette quaternary}
+\setbeamercolor{title in sidebar}{parent=palette sidebar quaternary}
+
+\setbeamercolor{subtitle}{parent=title}
+
+\setbeamercolor{author}{}
+\setbeamercolor{author in head/foot}{parent=palette primary}
+\setbeamercolor{author in sidebar}{use=palette sidebar tertiary,fg=palette sidebar tertiary.fg}
+
+\setbeamercolor{institute}{fg=gray3}
+\setbeamercolor{institute in head/foot}{parent=palette tertiary}
+\setbeamercolor{institute in sidebar}{use=palette sidebar tertiary,fg=palette sidebar tertiary.fg}
+
+\setbeamercolor{date}{}
+\setbeamercolor{date in head/foot}{parent=palette secondary}
+\setbeamercolor{date in sidebar}{use=palette sidebar tertiary,fg=palette sidebar tertiary.fg}
+
+\setbeamercolor{titlegraphic}{}
+
+\setbeamercolor{part name}{}
+\setbeamercolor{part title}{parent=titlelike}
+
+\setbeamercolor{section in toc}{parent=structure}
+% override beamer template since setting colors independently is not possible otherwise
+\setbeamertemplate{section in head/foot}{\color{gray3}\insertsectionhead}
+\setbeamertemplate{section in head/foot shaded}{\color{gray1}\insertsectionhead}
+\setbeamercolor{section number projected}{parent=item projected}
+
+\setbeamercolor{subsection in toc}{parent=structure}
+\setbeamercolor{subsection in head/foot}{parent=palette secondary}
+\setbeamercolor{subsection in sidebar}{parent=palette sidebar primary}
+\setbeamercolor{subsection in sidebar shaded}{use=subsection in sidebar,fg=subsection in sidebar.fg!40!bg}
+\setbeamercolor{subsection number projected}{parent={subitem projected}}
+
+\setbeamercolor{headline}{}
+\setbeamercolor{footline}{}
+
+\setbeamercolor{sidebar}{}
+\setbeamercolor{sidebar left}{parent=sidebar}
+\setbeamercolor{sidebar right}{parent=sidebar}
+
+\setbeamercolor{logo}{parent=palette secondary}
+
+\setbeamercolor{frametitle}{parent=titlelike,bg=}
+\setbeamercolor{framesubtitle}{parent=frametitle}
+
+\setbeamercolor{frametitle right}{parent=frametitle}
+
+\setbeamercolor{caption}{}
+\setbeamercolor{caption name}{parent=structure}
+
+\setbeamercolor{button}{use=local structure,bg=local structure.fg!50!bg,fg=white}
+\setbeamercolor{button border}{use=button,fg=button.bg}
+\setbeamercolor{navigation symbols}{use=palette quaternary,fg=palette quaternary.fg}
+\setbeamercolor{navigation symbols}{fg=black,bg=white}
+\setbeamercolor{navigation symbols dimmed}{use=palette tertiary,fg=palette tertiary.bg!50!fg}
+\setbeamercolor{mini frame}{parent=section in head/foot}
+
+\setbeamercolor{block body}{parent=palette secondary}
+\setbeamercolor{block body alerted}{parent=block body}
+\setbeamercolor{block body example}{parent=block body}
+\setbeamercolor{block title}{parent=palette secondary, fg=}
+\setbeamercolor{block title alerted}{use=block title,fg=alerted text.fg,bg=block title.bg}
+\setbeamercolor{block title example}{use=block title,fg=example text.fg,bg=block title.bg}
+
+\setbeamercolor{item}{use=palette primary, bg=palette primary.bg, fg=palette primary.bg}
+\setbeamercolor{subitem}{parent=item}
+\setbeamercolor{subsubitem}{parent=subitem}
+
+\setbeamercolor{item projected}{fg=black, use=palette primary, bg=palette primary.bg}
+\setbeamercolor{subitem projected}{parent=item projected}
+\setbeamercolor{subsubitem projected}{parent=subitem projected}
+
+\setbeamercolor{enumerate item}{parent=item}
+\setbeamercolor{enumerate subitem}{parent=subitem}
+\setbeamercolor{enumerate subsubitem}{parent=subsubitem}
+
+\setbeamercolor{itemize item}{parent=item}
+\setbeamercolor{itemize subitem}{parent=subitem}
+\setbeamercolor{itemize subsubitem}{parent=subsubitem}
+
+\setbeamercolor{itemize/enumerate body}{}
+\setbeamercolor{itemize/enumerate subbody}{}
+\setbeamercolor{itemize/enumerate subsubbody}{}
+
+\setbeamercolor{description item}{parent=item}
+
+\setbeamercolor{bibliography item}{parent=item}
+
+\setbeamercolor{bibliography entry author}{use=structure,fg=structure.fg}
+\setbeamercolor{bibliography entry title}{use=normal text,fg=normal text.fg}
+\setbeamercolor{bibliography entry location}{use=structure,fg=structure.fg!65!bg}
+\setbeamercolor{bibliography entry note}{use=structure,fg=structure.fg!65!bg}
+
+\setbeamercolor{separation line}{}
+
+\setbeamercolor{upper separation line head}{parent=separation line}
+\setbeamercolor{middle separation line head}{parent=separation line}
+\setbeamercolor{lower separation line head}{parent=separation line}
+
+\setbeamercolor{upper separation line foot}{parent=separation line}
+\setbeamercolor{middle separation line foot}{parent=separation line}
+\setbeamercolor{lower separation line foot}{parent=separation line}
+
+\setbeamercolor{abstract}{}
+\setbeamercolor{abstract title}{parent=structure}
+
+\setbeamercolor{verse}{}
+
+\setbeamercolor{quotation}{}
+\setbeamercolor{quote}{parent=quotation}
+
+\setbeamercolor{page number in head/foot}{fg=gray3}
+
+\setbeamercolor{qed symbol}{parent=structure}
+
+\mode<all>
diff --git a/beamerouterthemekfu.sty b/beamerouterthemekfu.sty
new file mode 100644
index 0000000..91b64ad
--- /dev/null
+++ b/beamerouterthemekfu.sty
@@ -0,0 +1,135 @@
+% Written by Kristian Bredies and Dirk Lorenz, 2005-2008
+%            Kristian Bredies, 2008-2009
+%            Christian Clason, 2014,2021
+
+\newif\ifbeamer@theme@german
+\DeclareOptionBeamer{german}{\beamer@theme@germantrue}
+\ProcessOptionsBeamer
+
+%% define fonts
+\setbeamerfont{title}{series=\bfseries}
+\setbeamerfont{titlelike}{parent=title}
+\setbeamerfont{frametitle}{parent=title}
+\setbeamerfont{framesubtitle}{parent=title}
+\setbeamerfont{frametitle continuation}{parent=title}
+\setbeamerfont{title in head/foot}{series=\mdseries}
+
+\mode<presentation>
+
+\ifbeamer@theme@german
+    \pgfdeclareimage[height=1cm]{kfu_logo}{kfulogo_de}
+\else
+    \pgfdeclareimage[height=1cm]{kfu_logo}{kfulogo_en}
+\fi
+
+%% title slide: left-justified
+\setbeamertemplate{title graphic}{
+    \vbox to 0pt {
+        \vspace*{2em}
+        \inserttitlegraphic%
+    }%
+    \nointerlineskip%
+}
+\setbeamertemplate{title}{
+    \raggedright%
+    \linespread{1.0}%
+    \inserttitle%
+    \par%
+    \vspace*{0.5em}
+}
+\setbeamertemplate{subtitle}{
+    \raggedright%
+    \insertsubtitle%
+    \par%
+    \vspace*{0.5em}
+}
+\setbeamertemplate{author}{
+    \vspace*{1em}
+    \insertauthor%
+    \par%
+    \vspace*{1em}
+}
+\setbeamertemplate{date}{
+    \vspace*{5mm}
+    \insertdate%
+    \par%
+}
+\setbeamertemplate{institute}{
+    \insertinstitute%
+    \par%
+}
+\setbeamertemplate{title page}{%
+    \parbox[b][1cm][c]{0.8925\paperwidth}{\hfill\pgfuseimage{kfu_logo}}
+    \vfill
+    \begin{minipage}[b][0.7\paperheight]{\textwidth}
+        \ifx\inserttitlegraphic\@empty\else\usebeamertemplate*{title graphic}\fi
+        \vfill%
+        \ifx\inserttitle\@empty\else\usebeamertemplate*{title}\fi
+        \ifx\insertsubtitle\@empty\else\usebeamertemplate*{subtitle}\fi
+        \ifx\beamer@shortauthor\@empty\else\usebeamertemplate*{author}\fi
+        \ifx\insertinstitute\@empty\else\usebeamertemplate*{institute}\fi
+        \ifx\insertdate\@empty\else\usebeamertemplate*{date}\fi
+    \end{minipage}
+    \vfill
+}
+
+%% header
+\defbeamertemplate*{frametitle}{kfu theme}[1][left]{
+    \@tempswafalse%
+    \ifbeamercolorempty[bg]{frametitle}{}{\nointerlineskip}%
+        \@tempdima=\textwidth%
+        \advance\@tempdima by\beamer@leftmargin%
+        \advance\@tempdima by\beamer@rightmargin%
+        \begin{beamercolorbox}[sep=0.3cm,#1,wd=\the\@tempdima]{frametitle}
+        \if@tempswa\else\csname beamer@fte#1\endcsname\fi{%
+        \usebeamerfont{frametitle}\insertframetitle\par}%
+        {%
+            \ifx\insertframesubtitle\@empty%
+        \else%
+            {\usebeamerfont{framesubtitle}\usebeamercolor[fg]{framesubtitle}\insertframesubtitle\par}%
+        \fi
+    }%
+    \if@tempswa\else\vskip-.3cm\fi% set inside beamercolorbox... evil here...
+    {\color{kfu}\rule{0.9\paperwidth}{2pt}}
+    \vskip0.5mm
+\end{beamercolorbox}%
+\vskip-0.5cm%
+}
+
+%% footer
+% sections and slide numbers in footer, no navigation symbols!
+\def\beamer@theme@footline@section{%
+    \insertsectionnavigationhorizontal{.9\paperwidth}%
+    {}{\hskip0pt plus1filll}%
+}
+\def\beamer@theme@footline@number{%
+    {\usebeamercolor[fg]{page number in head/foot}\insertframenumber\,/\,\inserttotalframenumber}%
+}
+\defbeamertemplate*{navigation symbols}{ude theme}{}
+
+\defbeamertemplate*{footline}{kfu theme}{%
+    \hspace*{3mm}{\color{gray2}\rule{0.9\paperwidth}{0.5pt}}
+
+    \vspace*{1ex}
+
+    \parbox[b]{.9\paperwidth}{%
+        \beamer@theme@footline@section%
+    }
+    \hfill
+    \parbox[b]{.1\paperwidth}{%
+        \hfill%
+        \beamer@theme@footline@number\hspace*{2mm}
+    }
+
+    \vspace*{1mm}
+}
+
+%% separate block head from body
+\addtobeamertemplate{block begin}{}{%
+    {\usebeamercolor[white]{block title}{%
+            \vspace*{-2.5ex}%
+            \hspace*{-1ex}\rule{\paperwidth}{0.4pt}
+    }}
+}
+
+\mode<all>
diff --git a/beamerthemekfu.sty b/beamerthemekfu.sty
new file mode 100644
index 0000000..f44094c
--- /dev/null
+++ b/beamerthemekfu.sty
@@ -0,0 +1,55 @@
+% Written by Kristian Bredies and Dirk Lorenz, 2005
+%            Christian Clason, 2014,2021
+
+\DeclareOptionBeamer{german}{\PassOptionsToPackage{german}{beamerouterthemekfu}}
+\DeclareOptionBeamer{font}{\def\beamer@kfu@font{#1}}
+\ExecuteOptionsBeamer{font=fira}
+\ProcessOptionsBeamer
+
+\usecolortheme{kfu}
+\useoutertheme{kfu}
+\useinnertheme{rectangles}
+
+%% Fonts
+\RequirePackage[utf8]{inputenc}
+\RequirePackage[T1]{fontenc}
+\usefonttheme{professionalfonts}
+
+\def\beamer@kfu@fontfira{fira}
+\def\beamer@kfu@fontmyriad{myriad}
+\def\beamer@kfu@fontnoto{noto}
+
+% MyriadPro for text and math (with fallback Euler for symbols)
+\ifx\beamer@kfu@font\beamer@kfu@fontmyriad%
+    \RequirePackage{eulervm}
+    \RequirePackage[onlytext,lf]{MyriadPro}
+    \RequirePackage[LGRgreek,defaultmathsizes,italic,mathaccents]{mathastext}
+    \DeclareMathAlphabet\mathbb{U}{dsss}{m}{n}
+    \DeclareSymbolFont{euler}{U}{zeur}{m}{n}
+    \DeclareMathSymbol{\partial}{\mathord}{euler}{64}
+    \RequirePackage[scaled]{beramono}
+\fi
+% Noto Sans for text, Noto Math for math (requires texlive2021)
+\ifx\beamer@kfu@font\beamer@kfu@fontnoto%
+    \usepackage[sfdefault,mono,scale=0.95,pf,osf,vvarbb]{notomath}
+\fi%
+% default: Fira Sans for text and newtxsf for math
+\ifx\beamer@kfu@font\beamer@kfu@fontfira%
+    \usepackage[sfdefault,vvarbb,scaled=0.95]{notomath}
+    \usepackage[book,medium,scaled=0.85,sfdefault]{FiraSans}
+    \RequirePackage[scaled=0.85]{FiraMono}
+\fi%
+
+\frenchspacing
+\RequirePackage[kerning,spacing]{microtype}
+
+% define some standard environments
+\newenvironment{bleq}       % block equation
+{ \begin{beamercolorbox}{block body}\begin{equation}}%
+{ \end{equation} \end{beamercolorbox} }
+\newenvironment{nbleq}[1]   % named block equation
+{\begin{beamercolorbox}{block title}\parbox[c][3.25ex]{\textwidth}{\usebeamerfont{block title}~#1\vphantom{pT}}\end{beamercolorbox}%
+    \vspace*{-0.2mm}\begin{beamercolorbox}{block body}\begin{equation}}%
+{\end{equation}\end{beamercolorbox}}
+
+\mode<all>
diff --git a/kfubeamer.tex b/kfubeamer.tex
new file mode 100644
index 0000000..7a2c67e
--- /dev/null
+++ b/kfubeamer.tex
@@ -0,0 +1,129 @@
+\documentclass[leqno]{beamer}
+% KFU theme: font=fira (default), noto, myriad (requires separate install)
+\usetheme[font=fira]{kfu}
+
+\usepackage[centercolon]{mathtools}
+\mathtoolsset{showonlyrefs,showmanualtags}
+
+\renewcommand{\phi}{\varphi}
+\newcommand{\eps}{\varepsilon}
+\newcommand{\N}{\mathbb{N}}
+\newcommand{\R}{\mathbb{R}}
+\newcommand{\1}{\mathbb{1}}
+\newcommand{\calF}{\mathcal{F}}
+\newcommand{\calG}{\mathcal{G}}
+\newcommand{\calI}{\mathcal{I}}
+\newcommand{\calJ}{\mathcal{J}}
+\newcommand{\calA}{\mathcal{A}}
+\newcommand{\calC}{\mathcal{C}}
+\newcommand{\calS}{\mathcal{S}}
+\newcommand{\scalprod}[1]{\langle #1 \rangle}
+\newcommand{\norm}[1]{\| #1 \|}
+\newcommand{\set}[2]{\left\{#1:#2\right\}}
+\DeclareMathOperator{\sign}{\mathsf{sign}}
+\DeclareMathOperator{\dom}{\mathsf{dom}}
+\DeclareMathOperator{\ran}{\mathsf{ran}}
+\newcommand{\half}{\frac{1}{2}}
+\renewcommand{\phi}{\varphi}
+\DeclareMathOperator{\Id}{\mathsf{Id}}
+\newcommand{\prox}{\mathsf{prox}}
+\newcommand{\proj}{\mathsf{proj}}
+\newcommand{\supp}{\mathsf{supp}}
+
+%======================================================================
+
+\title{On an interesting equation}
+
+\subtitle{A nice talk for a nice audience}
+
+\author{%
+    \textbf{Christian Clason}\inst{1}
+    \and
+    Someone Else\inst{2}
+}
+
+\institute{%
+    \inst{1}Institute of Mathematics and Scientific Computing, University of Graz\\
+    \inst{2}Faculty of Mathematics, University of Somewhere Else
+}
+
+\date{%
+    \structure{24th Interesting Conference 2021}\\
+    ZOOM, The Cloud, April 1, 2021
+}
+
+\begin{document}
+
+%======================================================================
+
+\frame[plain]{\titlepage}
+
+\begin{frame}[plain]{Acknowledgments}
+
+    Your logo here!
+
+\end{frame}
+
+\section{Overview}
+
+\begin{frame}[t]{Motivation}
+
+    \vfill
+    \begin{bleq}
+        1+1 = 2
+    \end{bleq}
+
+    \medskip
+
+    \textbf{Standard questions:}
+    \begin{enumerate}
+        \item does this \structure{make sense} \\
+            $\leadsto$ philosophy of mathematics
+        \item is it \structure{correct} \\
+            $\leadsto$ logic
+        \item does it \structure{hold for other numbers} \\
+            $\leadsto$ algebra
+    \end{enumerate}
+
+    \textbf{Current research:}
+
+    \begin{itemize}
+        \item $1$ \structure{unnatural number}
+        \item $=$ \structure{inexact}
+    \end{itemize}
+\end{frame}
+
+\frame[plain]{\tableofcontents}
+
+\section{Philosophy}
+\section{Logic}
+\section{Algebra}
+\section{Conclusion}
+\frame[plain]{\tableofcontents[currentsection]}
+
+\begin{frame}{Conclusion}
+
+    \textbf{The equation}
+    \begin{itemize}
+        \item \structure{makes sense}
+        \item is \structure{correct}
+        \item holds \structure{for unnatural numbers}
+    \end{itemize}
+
+    \bigskip
+
+    \textbf{Outlook:}
+    \smallskip
+    \begin{itemize}
+        \item extension to \structure{surreal numbers}
+            \smallskip
+        \item \structure{numerical evaluation}
+    \end{itemize}
+
+    \vfill
+    \structure{Preprint, codes:} \\
+    {\small \url{https://mathematik.uni-graz.at}}
+
+\end{frame}
+\end{document}
+%=====================================================================
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