I've gotten around to converting the vast majority of my art uploads to WebP from my normally HEAVILY optimized PNGs. Should minimize people complaining "Daemon, your uploads take 2 minutes to load for me." etcetc Although, all of them are pushed through oxipng/optipng. For my own website, I'll be keeping my standard jpg thumbnails/previews into full lossless pngs setup since I'm less worried about people being annoyed at downloading the full image since the previews are so small and I don't really care much about bandwidth there.

I love lossless image formats and I've done a lot of research into how they're implemented, going as far as to write my own optimizers, IE fargo (ignore the ugly, old code). That said, I'm not the biggest fan of WebP in general, I do admit, it's a nice bit of a shrink compared to PNG majority of the time. It's ratio on grayscale images is god awful, so anything I upload that's grayscale will be sticking with PNG. I don't really mind the fact Google has it's hands within it, since it's still a free and open format, with a decent reference library.

What I'm really waiting for is JPEG XL to start picking up, so far, everything I've seen with it blows WebP out of the water. Hopefully Newgrounds will implement it once it's supported in more browsers by default. I'm not exactly sure why I made this newspost, I guess I just love talking about lossless image formats a lot...

Fun and further reading:

http://www.libpng.org/pub/png/spec/1.2/PNG-Chunks.html

http://optipng.sourceforge.net/pngtech/optipng.html

https://jpegxl.info/art/