% !TEX program = latexTR
% !TEX encoding = UTF-8 Unicode
\documentclass{article}
\usepackage{pstricks}
\usepackage{url}

\begin{document}
The \textsf{latexTRmk} and \textsf{latexTR} engines are for gs 9.53 and using transparency.

\begin{pspicture}(-3,-3)(3,3)
\pscircle*[linecolor=blue,opacity=0.2](-1,0){3}
\pscircle*[linecolor=red,opacity=0.2]( 1,0){3}
\end{pspicture}

Place the files in the noted folders in \path{~/Library/TeXShop} and restart TeXShop.

\end{document}

