Interesting. Looks like each page is a separate canvas, and the canvas are reused as you scroll the pages (just like how list view reuse cells when you scroll i

Interesting. Looks like each page is a separate canvas, and the canvas are reused as you scroll the pages (just like how list view reuse cells when you scroll in a mobile app). The canvas seem to be only used for rendering text and tables though, images and graphic elements are still drawn as svg dom elements.