[    6284ms] [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/compare.html?voice=all:98
[    6318ms] [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/compare.html?voice=all:98
[    6357ms] [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/compare.html?voice=all:98
[    6389ms] [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/compare.html?voice=all:98
[    6422ms] [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/compare.html?voice=all:98