invert-kv
Invert the key/value of an object. Example: `{foo: 'bar'}` → `{bar: 'foo'}`
dargs
Reverse minimist. Convert an object of options into an array of command-line arguments.
swap-case
Transform a string by swapping every character from upper to lower case, or lower to upper case
invert-color
Generates inverted (opposite) version of the given color.