[vladdanilov]

JPEG is not a good choice for UI/typography screenshots. There are ~1MB of JPEGs at quality 50 on the page. By using PNG8 not only you can halve that size but also preserve original quality. Example:

  [1] PNG24 199 144 bytes
  [2] JPEG 94 699 bytes
  [3] PNG8 47 155 bytes

[1] https://user-images.githubusercontent.com/3129436/47068394-d...

[2] https://user-images.githubusercontent.com/3129436/47068393-d...

[3] https://user-images.githubusercontent.com/3129436/47068392-d...

[matejlatin]

Thanks for sharing this, will make sure to use PNG8 in the future!

[bloak]

See also: http://lbrandy.com/blog/2008/10/my-first-and-last-webcomic/

[spiralx]

That annoyed me as well, seems like the worst possible choice of format and quality for the given images.

[microcolonel]

Not to mention [1] could be almost halved size if run through the default (fast) options of optipng (or just compressed properly by whatever generated it).