Thanks for the suggestion. I did indeed achieve a significant speed up with OffscreenCanvas, see the commit below. It lets me avoid the slowest part of my ori

Thanks for the suggestion. I did indeed achieve a significant speed up with OffscreenCanvas, see the commit below. It lets me avoid the slowest part of my original solution, the call to context.putImageData() https://github.com/shaneosullivan/example-canvas-fill/commit/4197243080ff4fb49b67854e68566c902ff29b0a https://github.com/shaneosullivan/example-canvas-fill/commit...