Gary, thank you for that.
She is however mad for not using a Xara Desktop application.

We actually have a simpler mechanism in our Xara applications already: the Rounded Corner Rectangle.

From this you can create a Circle or Ellipse or any box shape.
This can be Skewed and Scaled.
It can have a Line Thickness.
It will accept a Linear Fill of many colours, including Transparent. Do not use the Transparency Tool; this creates PNGs.
Start and End Point that are Transparent, with interior coloured points vanish in the design but are published properly.

With this one shape almost all of what she has been doing is possible, all without a single PNG or JPEG.

Acorn