References highlighted in blue

Linked references are highlighted in a dark blue color. This was probably introduced in !32 (merged).

To create a test page use:

\begin{frame}{Miscellaneous \cite{tuhh2022demo} \url{www.google.com} \ref{section} }
    Collection of \LaTeX~commands and their appearance in this template:

    href = \href{mailto:xxxx@xyz.com}{xxxx@xyz.com} \\
    href with anchor  =  \href{www.URL.com}{anchor-text} \\
    url  =  \url{www.google.com} \\
    cite  =  \cite{tuhh2022demo}\\
    ref  =  \ref{section}\\
\end{frame}