梅威瑟:
\documentclass[a4paper,11pt]{article}
\usepackage{xcolor}
\usepackage[voc]{arabxetex}
\setmainfont{Amiri}
\newfontfamily\arabicfont[Script=Arabic,Scale=1.1]{Amiri}
\newcommand{\clrfatha}[3][0pt]{%
\arabicfont%
\hskip#2\raisebox{#1}{\textcolor{blue}{\char"064E}}\hskip-#2%
\textcolor{purple}{#3}%
}
\begin{document}
{\fontsize{1.4cm}{2cm} \clrfatha[-8pt]{6pt}{س}}
\end{document}
得出: