paul wheaton wrote: As long as we are fiddling with settings, do you have suggestions for any other formats?
Jpeg and PNG are already supported. SVG might be interesting for drawings.
Artie Scott wrote: The picture does not show up on my mobile.
Yes, unfortunately some browsers living behind the moon still don't support it. Firefox took far too long to add support for it. But given that it can cut image sizes into a quarter or less, I think it is worth it.