label
您可以在样式中添加milestone
如下内容:
\documentclass[border=5mm]{standalone}
\usepackage{pgfgantt}
\begin{document}
\begin{ganttchart}{1}{3}
\ganttmilestone[
inline,
milestone/.append style={label={[inner sep=1pt]below:baz}}
]{Foo}{2}
\end{ganttchart}
\end{document}