###Canvas drawing demo###
A little demo that allows you to draw circles, squares, and lines on a canvas. Also allows you to set the entire canvas to a single colour, or flood fill.
Flood fill uses typed arrays for faster pixel manipulation.
Attributions Modified Flood fill code from here: https://github.com/eleks/canvasPaint
You can see the demo here: cgarstin.github.io/canvas-drawing/drawing.html