[    1216ms] [WARNING] Canvas2D: Multiple readback operations using getImageData are faster with the willReadFrequently attribute set to true. See: https://html.spec.whatwg.org/multipage/canvas.html#concept-canvas-will-read-frequently @ http://127.0.0.1:8431/toon-preview/index.html:310
[    1301ms] [WARNING] Canvas2D: Multiple readback operations using getImageData are faster with the willReadFrequently attribute set to true. See: https://html.spec.whatwg.org/multipage/canvas.html#concept-canvas-will-read-frequently @ http://127.0.0.1:8431/toon-preview/index.html:310
[    1400ms] [WARNING] Canvas2D: Multiple readback operations using getImageData are faster with the willReadFrequently attribute set to true. See: https://html.spec.whatwg.org/multipage/canvas.html#concept-canvas-will-read-frequently @ http://127.0.0.1:8431/toon-preview/index.html:310
[    1485ms] [WARNING] Canvas2D: Multiple readback operations using getImageData are faster with the willReadFrequently attribute set to true. See: https://html.spec.whatwg.org/multipage/canvas.html#concept-canvas-will-read-frequently @ http://127.0.0.1:8431/toon-preview/index.html:310
[    1580ms] [WARNING] Canvas2D: Multiple readback operations using getImageData are faster with the willReadFrequently attribute set to true. See: https://html.spec.whatwg.org/multipage/canvas.html#concept-canvas-will-read-frequently @ http://127.0.0.1:8431/toon-preview/index.html:310