% Master's or Bachelor's Thesis
\DeclareOption{thesis}{
  % line skip
  \setstretch{1.1}

  \renewcommand{\maketitle}{%
    \begin{titlepage}
    \begin{center}
    \includegraphics[scale=0.2]{logopp/logopp-sygnet-en}
    \end{center}

    \vfill
    \begin{center}
    \LARGE POLITECHNIKA POZNAŃSKA\\
     Wydział Elektryczny
    \end{center}

    \vfill
    \begin{center}
    {\LARGE\secfont\bfseries\@author}\par
    \Large PRACA DYPLOMOWA INŻYNIERSKA
    \vspace{2ex}
    {\huge\secfont\begin{spacing}{0.95}\@title\end{spacing}}\par
    \vspace{4ex}
    \end{center}
    \vfill\vfill

    \begin{center}
    {\large \translate{Promotor}:~ \@supervisorname}\par
    {\bigskip\large \@date}
    \end{center}

    \end{titlepage}
    \cleardoublepage
  }