Hi there!

Any thoughts on implementing SVG gradients in MetaPost?

% SOF
\startbuffer[csvg]
<svg xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 115.669
115.669"><defs><radialGradient xlink:href="#a" id="b" cx="124.515"
cy="167.114" r="57.834" fx="124.515" fy="167.114"
gradientTransform="translate(-17.77 -18.4)"
gradientUnits="userSpaceOnUse"/><linearGradient id="a"><stop
offset="0"/><stop offset="1"
stop-opacity="0"/></linearGradient></defs><g
transform="translate(-48.91 -90.879)"><path fill="red"
fill-opacity=".5" d="M48.769 90.936H164.64V206.96H48.769z"/><circle
cx="106.745" cy="148.713" r="57.834" fill="url(#b)"
fill-rule="evenodd"/></g></svg>
\stopbuffer

\starttext
  \placefigure{}{\includesvgbuffer[csvg][conversion=mp]}
\stoptext
% EOF

See attached a comparison of the PDF generated using ConTeXt and the
PNG file generated by exporting from Inkscape.

Many thanks!