Also put the export part back into the main
Illustrator script

Also update the Blender scripts to use red/green/blue areas
instead of light and dark ones. This also allows for
three colors now.

Also update the Illustrator scripts

Also adds an Illustrator script that automatically
handles all of the tracing

Drawing an SVGImageElement to a canvas goes haywire. This checks for
that behavior and warns about it, and turns off the fine-grained
selection logic.