\documentclass[tikz]{standalone}
\usepackage{tikz}
\usepackage{pgfplots}
\usepackage{chemfig}
\usepackage[mode=match, reset-text-family=false]{siunitx}
\DeclareSIUnit\degF{\text{°}F}
\input{flowcharts_tikz.tex}
\input{../colors.tex}
\input{../abbreviations.tex}
