Under what license would you propose for us to apply? We just wanted to create something for the community. We'll be creating a public repo in the coming days on Github.
The point is that there is no license under which you can lawfully redistribute Microsoft’s copyrighted icons. And given GitHub’s current ownership, they might not be able to ignore the violation for very long.
If you remove the icons (and also the font if that was ripped from Windows too), you might be okay.
We will remove the original icons in our next update.
Microsoft probably does not care, in all honesty. But that’s some pretty shaky legal footing.