[Tex/LaTex] Changing the default title/author/institution/frametitle font in Beamer

Question

I sadly haven't been able to answer this questions using Google. In beamer, I'd like to make the default font for the entire title page, as well as frame titles, to be the default font from the old prosper package (example here).

Answer 1

Found a solution:

    \usefonttheme{structurebold}
    \setbeamerfont{title}{series=\bfseries,parent=structure}
    \setbeamerfont{subtitle}{size=\scriptsize,series=\bfseries,parent=structure}
    \setbeamerfont{author}{size=\scriptsize,series=\bfseries,parent=structure}
    \setbeamerfont{institute}{size=\scriptsize,series=\bfseries,parent=structure}
    \setbeamerfont{date}{size=\scriptsize,series=\bfseries,parent=structure}