Save canvas animation as sequence of images

Caveat. Early development!

This is a utility to record frames from programmatic animation, in canvas.
Frames are saved full-size, but drawn into the page reduced.
Ideally, the size of these saved images would be configurable / dynamic.

Images can also be saved as a list of links.
Future development would see images saved to file on the user's system.

I am using a very fast version of my path following demo to highlight frame to frame difference.

Press and hold button to record