% Copyright 2007 by Till Tantau
% Copyright 2015 by Vedran Mileti\'c, Joseph Wright
%
% This file may be distributed and/or modified
%
% 1. under the LaTeX Project Public License and/or
% 2. under the GNU Public License.
%
% See the file LICENSE.md for more details.

\DeclareOptionBeamer{stillsansserifmath}[]{\def\mathfamilydefault{\sfdefault}\beamer@sansmathtrue}
\DeclareOptionBeamer{stillsansserifsmall}[]{\def\beamer@tsfont{\sffamily}}
\DeclareOptionBeamer{stillsansseriflarge}[]{\def\beamer@sfont{\sffamily}}
\DeclareOptionBeamer{stillsansseriftext}[]{\def\familydefault{\sfdefault}}

\DeclareOptionBeamer{onlymath}[]{
  \def\beamer@tsfont{\sffamily}
  \def\beamer@sfont{\sffamily}
  \def\familydefault{\sfdefault}
}

\def\beamer@tsfont{\rmfamily}
\def\beamer@sfont{\rmfamily}
\def\familydefault{\rmdefault}
\def\mathfamilydefault{\rmdefault}
\beamer@sansmathfalse

\ProcessOptionsBeamer

\setbeamerfont{tiny structure}{family=\beamer@tsfont}
\setbeamerfont{structure}{family=\beamer@sfont}