# How to change font size and type of chemnum labels?

I currently find the autolabels from chemnum package to be too big and ugly. I'd like to change their font size and type, how can I do this? Download the .eps for the MWE here.

\documentclass[twocolumn]{article}
\usepackage{tgbonum}
\usepackage[T1]{fontenc}
\usepackage{geometry}
\usepackage{chemstyle}
\usepackage{chemfig}
\usepackage{booktabs}
\usepackage{siunitx}
\DeclareSIUnit{\Molar}{\textsc{m}}
\usepackage[super]{natbib}
\usepackage{hyperref}
\usepackage{graphicx,float}
\usepackage{chemnum}
\usepackage{chemscheme}
\usepackage[font=small,labelfont=bf]{caption}
\usepackage{color}

\geometry{
a4paper,
total={170mm,257mm},
left=20mm,
top=20mm,}

\begin{document}
\title{XYZ}
\author{\small{One and Two}}
\date{\small{30\textsuperscript{th} May, 2018}}

\twocolumn[
\begin{@twocolumnfalse}
\maketitle
\begin{abstract}
...
\end{abstract}
\end{@twocolumnfalse}
]

\section{Introduction}

\begin{figure}[!htbp]
\replacecmpd{1}
\replacecmpd{2}
\includegraphics[scale=0.4]{my figure}
\caption{Caption Here}
\label{myfigure}
\end{figure}

\bibliographystyle{rsc}
\bibliography{REF.bib}

\end{document}

• Off-topic: \small doesn't take an argument and you are loading hyperref too early. – cfr Jun 24 '18 at 1:36
• chemnum has an option for this. Please have a look at the manual. – clemens Jun 24 '18 at 6:56
• @cfr when should I load hyperref and what is the issue with where it is now? – Hazinga Jun 24 '18 at 11:22
• Load it last, with a few exceptions (e.g. cleveref must be load afterwards). It adapts to what is loaded, so it won't work properly where it is now. – cfr Jun 24 '18 at 12:55
• @cfr it works perfectly fine where it is right now in my main document. But I'll do as you suggest. – Hazinga Jun 24 '18 at 14:41