\DeclareOptionBeamer{shadow}[true]{\def\beamer@themerounded@shadow{#1}}
\ExecuteOptionsBeamer{shadow=false}
\ProcessOptionsBeamer

\usetheme{default}

\usecolortheme{lehigh}
\useinnertheme{lehigh}
\useoutertheme{lehigh}

\beamertemplatenavigationsymbolsempty
