\setbeamertemplate{itemize item}[circle]
\setbeamertemplate{itemize subitem}[circle]
\setbeamertemplate{itemize subsubitem}[circle]


\beamertemplatenavigationsymbolsempty

\setlength\belowdisplayshortskip{2ex}


\setbeamertemplate{footline}{
    \hfill%
    \hspace{2em}%
    \usebeamercolor[fg]{footline}
    \insertframenumber\kern1em\vskip2ex%
}


\setbeamertemplate{caption}
{
    \raggedright\insertcaption\par
}


\setbeamertemplate{frametitle}{
    \nointerlineskip
    \vskip2ex
    \usebeamercolor[fg]{frametitle}
    \insertframetitle
}