Should we track the newer image formats?

[tunetheweb]

There’s a lot of interest about the next generation of image formats, primarily AVIF and JPEG-XL.

Should we have a graph for each of these looking at % sites that have at least one of these images?

Could also add one for WebP - will that see a drop off as people migrate to the newer format and keep the old reliables of JPG/PNG as fallback without also supporting WebP?

[rviscomi]

This is the goal of #939, as the Media chapter is presumably looking into adoption of newer image formats. So there'd be a Media report on the website with charts for each of these.

[mgifford]

Or just SVG.