beamertheme-bruno/src/beamerinnerthemeBruno.sty

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%% Bruno Beamer theme — Version 1.0
%% A lightweight Beamer theme inspired from the Metropolis theme
%%
%% Written in 2017-2019 by:
%% — Rémi Cérès <remiceres@msn.com>
%% — Mattéo Delabre <bonjour@matteodelabre.me>
%%
%% This work is released under the CC0 1.0 Universal license. See the
%% accompanying LICENSE file for details. To the extent possible under
%% law, Rémi Cérès and Mattéo Delabre have waived all copyright and
%% related or neighboring rights to the Bruno Beamer theme. This work
%% is published from France.
\mode<presentation>
\setbeamertemplate{sections/subsections in toc}[square]
\setbeamertemplate{itemize item}[square]
\setbeamertemplate{itemize subitem}[circle]
% Allow multi-slide frames
\setbeamertemplate{frametitle continuation}{}
% Horizontal separator
\setbeamertemplate{separator}{%
\usebeamercolor{separator}%
\textcolor{fg}{\rule{.7\textwidth}{.5pt}}%
}
% Separate authors with newlines
\renewcommand{\beamer@andtitle}{\\}
% Title page. If you want to add a background image on the title slide,
% use the \background command to set the path to that image. Otherwise,
% no image will be included
\RequirePackage{tikz}
\usetikzlibrary{fadings}
\newcommand{\background}[1]%
{\newcommand{\bruno@background}{#1}}
\tikzfading[
name=title page picture fading,
left color=transparent!0,
right color=transparent!100,
]
\setbeamertemplate{title page}{%
\begin{minipage}{.7\textwidth}
\raggedright
\usebeamerfont{title}
\inserttitle
\usebeamertemplate{separator}
\usebeamerfont{author}
\vspace{2em}
\insertauthor
\vspace{2em}
\usebeamerfont{details}
\insertinstitute
\insertdate
\end{minipage}
% Include faded image on the right if defined
\ifdefined\bruno@background
\begin{tikzpicture}[remember picture, overlay]
% Crop image to a trapezium on the right
\clip (current page.south east)
-- (current page.north east)
-- ++(-5.1, 0)
-- ++(-3, -\paperheight)
-- cycle;
% Include background image
\node[
anchor=south east,
inner sep=0,
outer sep=0
] at (current page.south east) {
\includegraphics[height=\paperheight]
{\bruno@background}
};
% Add a slight shadow
\fill[
black, path fading=title page picture fading,
fading angle=-15
]
(current page.south east)
rectangle
++(-10, \dimexpr\paperheight+1cm);
\end{tikzpicture}
\fi
}
\mode<all>