According to its npm and github pages, it uses the ISC License
While I do see that the npm and github pages do include a license, we have to look at the version being used. The license was added after the current version being used (version 0.1.7) which was last updated 7 years ago which would put the time around 2012, so I do not think any of the license(s) apply.
The license file was updated on Aug 20, 2018; previously it was MIT from Feb 21, 2017; and copyright? license from Nov 24, 2014 (According to the LICENSE file). Although the package.json license was updated to MIT on Jan 16, 2013 in version v.0.2.2.
It looks like every version of cli-color since inception was licensed with the ISC license and every version of json-diff uses the MIT license.
Closing out this issue
@SomayaB @NGL321 I don't think you've done proper due diligence on this issue. Please look into it more closely. It 100% has not been licensed correctly from inception. The version being used contains no license...
If you look at this link: https://github.com/medikoo/cli-color/blob/ebeb2e81a0c984047a71c392cf81897e34ad5b8a/package.json you will not see any license in the repo at this node version (0.1.7) of "cli-color" package. As stated in my previous comment.
License was added in this commit:
https://github.com/medikoo/cli-color/commit/d28882bed9d9dc4833a719bad404e5f3682385be in version v0.2.2
And json-diff is using the unlicensed version of the cli-color package v0.1.7 https://github.com/andreyvit/json-diff/blob/master/package.json#L21