beamerthemeuclposter.sty

\usetheme{ucl}

% disable nav symbols
\setbeamertemplate{navigation symbols}{} 

% puts the title on one line, and subtitle below
\defbeamertemplate*{headline}{poster}{%
  \hspace{2em}
  \begin{beamercolorbox}[ignorebg,ht=\bannerheight,sep=1em]{headline}%
    % \vbox to\bannerheight{
    %   \vspace{0.1\bannerheight}%
      \usebeamerfont{title}\usebeamercolor[fg]{title}%
      \strut\inserttitle\strut\par%
      \usebeamerfont{author}\usebeamercolor[fg]{author}%
      \strut\insertauthor\strut\par%
      \usebeamerfont{institute}\usebeamercolor[fg]{institute}%
      \strut\insertinstitute\strut\par%
    %   \vfil%
    % }
    \end{beamercolorbox}
    \ifbeamercolorempty[bg]{banner stripe}{}{\vspace{\stripeheight}}%
  }


\setbeamercolor*{headline}{parent=banner}
\setbeamercolor*{author}{parent=banner}
\setbeamercolor*{institute}{parent=banner}

\setbeamerfont{title}{size=\huge}
\setbeamerfont{author}{size=\Large}
\setbeamerfont{institute}{size=\normalsize}


% Reduce margins