People put milk in their porridge? Blasphemy!.
Blue: use commas for decimal separation in numbers, dots for thousands, millions, etc
Orange: use dots for decimal separation in numbers, commas for thousands, millions, etc
Green: do something else with decimals and thousands, millions, etc
?
Cool, guessed one right. With abundant hints.
I can't see it, but I'm guessing it's UFO sightings from the URL.