It doesn't appear to be open source since it's not on the authors Github. However if you're looking for a menubar app example with custom views, here is one: ht

It doesn't appear to be open source since it's not on the authors Github. However if you're looking for a menubar app example with custom views, here is one: https://github.com/phranck/CCNStatusItem https://github.com/phranck/CCNStatusItem. The example in that repo is what was used for this app (presumably, since the binary in the package shows as CCNStatusItem)