VectSharp is a library to create vector graphics (including text ... as both of them can be used to create PNG images. However, VectSharp.Raster is much faster, though it only supports the PNG format.

This will allow you to create PolyZones in your script, but will not import other zones, such as CircleZone, BoxZone, etc. All the other zones are extra, and require their own explicit imports. Here ...