Different Style of pi infinity symbol

However, it relies on the use of the mathptmx (or equivalent) font.

\documentclass[10pt]{article}
\usepackage{xcolor,stackengine,trimclip,mathptmx}
\stackMath
\newcommand\mypi{\ensurestackMath{\stackengine{0pt}{%
  \stackengine{-1.97pt}{\color{cyan}\kern4.4pt\clipbox{4.4pt 0pt 0pt 0pt}
    {$\pi$}}{\scalebox{1.08}{$\scriptstyle\color{blue!80!black}\infty$}\mkern1.5mu}%
    {O}{c}{F}{F}{L}}{%
    \color{cyan}\clipbox{0pt 0pt 1.9pt 0pt}{$\pi$}\kern1.9pt}{O}{c}{F}{F}{L}%
}}
\begin{document}
\[x\mypi y\]
\end{document}

Maybe you can use this conversion of your image to tikz:

\documentclass{article}
\usepackage{tikz}
\usepackage[outline]{contour}

\begin{document}
\scalebox{15} {
\definecolor{c8900ca}{RGB}{137,0,202}
\definecolor{c012671}{RGB}{1,38,113}


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% path81
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% path83
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\end{tikzpicture}
}
\end{document}

(details on the conversion process can be found at https://tex.stackexchange.com/a/340956/36296)