\documentclass{standalone}
\usepackage{tikz}
\usetikzlibrary{arrows.meta}
\usetikzlibrary{backgrounds}
\usetikzlibrary{calc}
\usetikzlibrary{fit}
\usetikzlibrary{positioning}

\usepackage{flowchart}

\tikzstyle{every picture}+=[font=\sffamily]

\begin{document}
<>
\end{document}
