Dear maintainer,

I see that the package bmt (version 0.6-1.1) suggests pgf which is not
in unstable.

This can be seen in https://packages.debian.org/unstable/bmt . Search
for "Package not available".

The missing package used to be in Debian but they were removed some time
ago:

- https://tracker.debian.org/pkg/pgf


Should it be dropped or changed?

Thank you,