Coloring defined submolecule

Question

What is the right way to color a submolecule defined by \definesubmol?

MWE

\documentclass[12pt]{article}
\usepackage{float}
\usepackage{chemfig}
\usepackage{chemmacros}
    \chemsetup{
        modules = all,
    }
\begin{document}
\begin{figure}[H]
\centering
\definesubmol{pvc}{CH_2-CH(-[:90]Cl)}
\chemfig{-!{pvc}- \color{green}{!{pvc}} -!{pvc}-}
\end{figure}
\end{document}

Answer 1

Answer based on a post that is here

\documentclass[12pt]{article}
\usepackage{float}
\usepackage{chemfig}
\usepackage{chemmacros}
\chemsetup{
    modules = all,
}
\begin{document}
\def\GREEN{\gdef\printatom##1{\color{green}\ensuremath{\mathrm{##1}}}}
\def\BLACK{\gdef\printatom##1{\color{black}\ensuremath{\mathrm{##1}}}}
\begin{figure}[H]
    \centering
    \definesubmol{pvc}{CH_2-CH(-[:90]Cl)}
    \chemfig{-!{pvc}(-[,,,,draw=none]\GREEN)([,,,,green]-!{pvc}-)\BLACK!{pvc}-}
\end{figure}

\end{document}