INFO:

Example of what loading a big image over a slow connection would look like. Download speed here is 30 kB/s, more or less what you get on 2.75G (EDGE). This is a 5 megapixel image, encoded to roughly the same perceptual quality using 4 different codecs: - libjpeg-turbo (default sequential mode) - mozjpeg 4.0.1 (default progressive mode) - JPEG XL 0.1 - AVIF (libavif 0.8.2 / libaom 2.0.0) See also https://youtu.be/uzYHXqjGgL4 for a comparison to FLIF and to see JPEG XL's