I’ve tried lots of png compression tools but no one of them made the images near the tiny size of:
The only thing I don’t like about is that it’s a service.
And yes, I’ve made a plugin for that as well:
https://github.com/jenstornell/Kirby-tinyThumb
I’m not sure if it still work.
Anyway, my point is if you will add png compression, try to find something that compress as good as tinypng if possible. Then I might even buy a copy, only for the compression thing.