The WEBP image format should allow better image filesizes and for lossy images with transparent pixels, which would be an improvement over the current png image format used to export to. Sadly enough Firefox currently doesn't support image/webp in the Canvas.toDataURL and falls back to image/png. That is a safe fallback, but a bit of a shame. It could however maybe help Chrome instead?
The WEBP image format should allow better image filesizes and for lossy images with transparent pixels, which would be an improvement over the current png image format used to export to. Sadly enough Firefox currently doesn't support
image/webpin theCanvas.toDataURLand falls back toimage/png. That is a safe fallback, but a bit of a shame. It could however maybe help Chrome instead?