natty_dread wrote:Sorry but I disagree. JPEG is only good for photographs and such. The lossy encoding creates artifacts and blurs, which makes it hard to spot if there are small errors in the image that need to be corrected. I'm a perfectionist when it comes to graphics... in fact I've long been of the opinion that lack should allow maps to be hosted as PNG:s on the site, or at least higher quality JPG:s - once they're in your browser cache you don't have to load them again anyway...
in theory you are correct, but please tell me if you find any differences or artefacts or any lossy compression problems, blurs or anything else in the following images. one is a 1.6Mb png file and the other is a jpg 3 times smaller.
http://i178.photobucket.com/albums/w250/DiM-topia/SteamWorksL-v22-1.jpg
http://i178.photobucket.com/albums/w250/DiM-topia/SteamWorksL.png
i see absolutely no difference when it comes to judging quality with the naked eye.
and on top of this your png files won't be used at all. lack will convert them to lower quality jpg to speed up the browsing experience.