Whilst this package is already in the libre repo and has a lot of proprietary data removed, it turns out that even more proprietary data is lurking within.

The Adam Bolt 16×16 tiles have no license and as such are proprietary.

There may be proprietary headers for Windows.

I fear there may be even more proprietary files which have not been spotted yet.

See https://github.com/angband/angband/issues/5176 for more information.