\documentclass[12pt]{article} \usepackage{pstricks} \SpecialCoor \usepackage{pst-xkey} \makeatletter \define@key[psset]{}{transpalpha}{\pst@checknum{#1}\pstranspalpha} \psset{transpalpha=0.5} % \def\psfs@transp{% \addto@pscode{/Normal .setblendmode \pstranspalpha .setshapealpha} \psfs@solid% } \makeatother \pagestyle{empty} \parindent=0pt \begin{document} \psset{linestyle=none,fillstyle=transp} \begin{pspicture}(-5,-5)(5,5) \rput(0,1){\Huge\textbf{PSTricks}} \pscircle[fillcolor=green](2;135){2cm} \pscircle[fillcolor=red](2;45){2cm} \pscircle[fillcolor=blue](1;-90){2cm} \end{pspicture} \end{document}