Based on this article https://medium.com/@antin/photos-uses-an-internal-google-framework-wiz-89e2b7c8c1d5 https://medium.com/@antin/photos-uses-an-internal-goog

Based on this article https://medium.com/@antin/photos-uses-an-internal-google-framework-wiz-89e2b7c8c1d5 https://medium.com/@antin/photos-uses-an-internal-google-fra..., seems like Wiz is an internal Google framework; therefore Angular, which is also a Google project, decided to merge them. Good for them!