colorful diffs for MongoDB's JSON

before.json

{
  "foo": "foo",
  "bar": "bar"
}

after.json

{
  "foo": "foo2",
  "bar": "bar2"
}

chau -b before.json -a after.json foo

{
  "bar" : "bar2" // != "bar"
}

-b: before json file.

-a: after json file.

other: filter key words.