initial import

+\mode<presentation>
+
+\definecolor{beamer@blendedblue}{rgb}{.01,.32,0.58} % use structure theme to change
+
+\setbeamercolor{normal text}{fg=black,bg=white}
+\setbeamercolor{alerted text}{fg=red!80!black}
+\setbeamercolor{example text}{fg=green!50!black}
+
+\setbeamercolor{structure}{fg=beamer@blendedblue}
+
+\setbeamercolor{background canvas}{parent=normal text}
+\setbeamercolor{background}{parent=background canvas}
+
+\setbeamercolor{palette primary}{use=structure,fg=structure.fg}
+\setbeamercolor{palette secondary}{use=structure,fg=structure.fg!75!black}
+\setbeamercolor{palette tertiary}{use=structure,fg=structure.fg!50!black}
+\setbeamercolor{palette quaternary}{fg=black}
+
+\setbeamercolor{palette sidebar primary}{use=normal text,fg=normal text.fg}
+\setbeamercolor{palette sidebar secondary}{use=structure,fg=structure.fg}
+\setbeamercolor{palette sidebar tertiary}{use=normal text,fg=normal text.fg}
+\setbeamercolor{palette sidebar quaternary}{use=structure,fg=structure.fg}
+
+\setbeamercolor{math text}{}
+\setbeamercolor{math text inlined}{parent=math text}
+\setbeamercolor{math text displayed}{parent=math text}
+
+\setbeamercolor{normal text in math text}{}
+
+\setbeamercolor{local structure}{parent=structure}
+
+\setbeamercolor{titlelike}{parent=structure}
+
+\setbeamercolor{title}{parent=titlelike}
+\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}{}
+\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 name}{}
+\setbeamercolor{section title}{parent=titlelike}
+
+\setbeamercolor{section in toc}{parent=structure}
+\setbeamercolor{section in toc shaded}{parent=section in toc}
+\setbeamercolor{section in head/foot}{parent=palette tertiary}
+\setbeamercolor{section in sidebar}{parent=palette sidebar secondary}
+\setbeamercolor{section in sidebar shaded}{use=section in sidebar,fg=section in sidebar.fg!40!bg}
+\setbeamercolor{section number projected}{parent=item projected}
+
+\setbeamercolor{subsection name}{}
+\setbeamercolor{subsection title}{parent=titlelike}
+
+\setbeamercolor{subsection in toc}{}
+\setbeamercolor{subsection in toc shaded}{parent=subsection in toc}
+\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{subsubsection in toc}{parent=subsection in toc}
+\setbeamercolor{subsubsection in toc shaded}{parent=subsubsection in toc}
+\setbeamercolor{subsubsection in head/foot}{parent=subsection in head/foot}
+\setbeamercolor{subsubsection in sidebar}{parent=subsection in sidebar}
+\setbeamercolor{subsubsection in sidebar shaded}{parent=subsection in sidebar shaded}
+\setbeamercolor{subsubsection number projected}{parent=subsubitem 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}
+\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=structure,fg=structure.fg!40!bg}
+\setbeamercolor{navigation symbols dimmed}{use=structure,fg=structure.fg!20!bg}
+\setbeamercolor{mini frame}{parent=section in head/foot}
+
+\setbeamercolor{block body}{}
+\setbeamercolor{block body alerted}{}
+\setbeamercolor{block body example}{}
+\setbeamercolor{block title}{parent=structure}
+\setbeamercolor{block title alerted}{parent=alerted text}
+\setbeamercolor{block title example}{parent=example text}
+
+\setbeamercolor{item}{parent=local structure}
+\setbeamercolor{subitem}{parent=item}
+\setbeamercolor{subsubitem}{parent=subitem}
+
+\setbeamercolor{item projected}{parent=item,use=item,fg=white,bg=item.fg}
+\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=fg!50!bg}
+
+\setbeamercolor{qed symbol}{parent=structure}
+
+\mode
+<all>

+\mode<presentation>
+
+\useinnertheme{circles}
+\usecolortheme{ibisc}
+
+\setbeamertemplate{navigation symbols}{
+  \raisebox{5mm}{\tiny\color{white}\insertframenumber/\inserttotalframenumber}
+}
+
+\setbeamerfont{frametitle}{size=\huge}
+\setbeamerfont{title}{size=\Huge}
+
+\setbeamertemplate{frametitle}{%
+  \begin{beamercolorbox}[wd=\paperwidth,ht=13.4mm,dp=6.6mm,left]{frametitle}%
+    \hspace*{26mm}\insertframetitle%
+  \end{beamercolorbox}} 
+
+\newcommand\frontbg{\usebackgroundtemplate{%
+  \includegraphics[width=\paperwidth,height=\paperheight,page=1]{ibiscbg}%
+}}
+
+\newcommand\bodybg{\usebackgroundtemplate{%
+  \includegraphics[width=\paperwidth,height=\paperheight,page=2]{ibiscbg}%
+}}
+
+\let\titlepageibisc=\titlepage
+\def\titlepage{\vspace*{2cm}\titlepageibisc}
+
+\mode<all>

+% -*- coding: utf-8 -*-
+\documentclass{beamer}
+
+\usepackage[french]{babel}
+\usepackage[utf8]{inputenc}
+\usepackage[T1]{fontenc}
+\usepackage{ae}
+\usepackage{textpos}
+\usepackage{appendixnumberbeamer}
+\usepackage{tikz}
+\usepackage{multicol}
+
+\def\minor #1{{\small\color{gray} #1}}
+
+\usetheme{ibisc}
+
+%%
+%%
+
+\title{Title}
+\author{Author}
+\institute{\color{gray}IBISC, Université d'Évry}
+\date{date}
+
+%%
+%%
+
+\begin{document}
+
+\frontbg
+
+\begin{frame}
+  \titlepage
+\end{frame}
+
+%%
+%%
+
+\bodybg
+
+\begin{frame}{Title}
+  Content
+\end{frame}
+
+\end{document}