Web Canvas element/API:

• https://en.wikipedia.org/wiki/Canvas_element

• Canvas API: https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API

• <canvas>: The Graphics Canvas element: https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements/canvas

• HTML Canvas Reference: https://www.w3schools.com/tags/ref_canvas.asp

• HTML Canvas Graphics: https://www.w3schools.com/html/html5_canvas.asp