How to call the content of \tcbitem of tcbitemize environment in tcolorbox in its option part. Example code like this:
\documentclass{article}
\usepackage[most]{tcolorbox}
\begin{document}
\tcbset{figure/.style={...} % or figure/.code
\begin{tcbitemize}
\tcbitem[figure] myfigure.jpg % This will typeout a figure as the content of this \tcbitem
\end{tcbitemize}
\end{document}