This was also documented here, nearly 1-year ago:

https://github.com/zed-industries/zed/discussions/6659

Where there is a VSCode theme importer for Zed.

And what it does is silently install a Home Brew package and attempt to execute it on your machine.

> silently install a Home Brew package

Only thing i found in your link that mentions this is about VSCode extension [0] - not Zed extension. How is that relevant here?

[0] https://marketplace.visualstudio.com/items?itemName=degreat....