I'm using the metropolis theme for beamer presentation and i have some problems with logo. In fact, I want to change the white background of my eps logo to the transparent one, so that only the colors of the letters are visible (red, blue, gray and not white).
The eps file is here and i donwload the png version to see what the figure looks like.
Thanks
Below you find my MWE and the screen of my document:
\documentclass[10pt]{beamer}
\usetheme[subsectionpage=progressbar,background=light]{metropolis}
\usepackage{appendixnumberbeamer}
\usepackage{booktabs}
\usepackage[scale=2]{ccicons}
\usepackage{xspace}
\newcommand{\themename}{\textbf{\textsc{metropolis}}\xspace}
\titlegraphic{%
\includegraphics[width=.2\textwidth]{example-image-a}\hfill
\includegraphics[width=3cm,height=1.6cm]{logo.eps}\hfill
\includegraphics[width=.2\textwidth]{example-image-b}
}
\makeatletter
\setbeamertemplate{title page}{
\begin{minipage}[b][\paperheight]{\textwidth}
\vfill%
\ifx\inserttitlegraphic\@empty\else\inserttitlegraphic\fi
\centering
\vfill%
\ifx\inserttitle\@empty\else\usebeamertemplate*{title}\fi
\ifx\insertsubtitle\@empty\else\usebeamertemplate*{subtitle}\fi
\usebeamertemplate*{title separator}
\ifx\beamer@shortauthor\@empty\else\usebeamertemplate*{author}\fi
\ifx\insertinstitute\@empty\else\usebeamertemplate*{institute}\fi
\ifx\insertdate\@empty\else\usebeamertemplate*{date}\fi
\vfill
\vspace*{1cm}
\end{minipage}
}
\setbeamertemplate{title}{
% \raggedright%
\linespread{1.0}%
\inserttitle%
\par%
\vspace*{0.15em}
}
\setbeamertemplate{subtitle}{
% \raggedright%
\insertsubtitle%
\par%
\vspace*{0.5em}
}
\makeatother
\title{My long long long long long long long long long long Title }
\subtitle{My subtitle}
\author{FirstName LastName \\ Supervisor: My supervisor}
\institute{My Institute}
\date{\today}
\begin{document}
\begin{frame}
\titlepage
\end{frame}
\end{document}
Secondly I would like to know how to create a command for a supervisor information (like \author, \institute, \date, ...) instead of putting his name in the author command ? and how to place it just under the author name ?




beamer, https://tex.stackexchange.com/questions/58506/how-to-make-a-new-command-similar-to-author – Ignasi Feb 04 '18 at 15:53