Let me first say THANKS for this program really nice!
I hope this project is going to continue on for some time...
Since there's isn't Little Snitch for Linux this is the next best thing!
Ok, when I ran 0.8.0 it says 'root unknown TCP' and I'm assuming this isn't a bug since this only supports IPv4 and when using WiFi that has IPv6 built in, then this is the typical response back, saying the TCP is unknown?
I also have VMware installed showing two adapters; vmnet1 & vmnet8 showing inet6 as well...
Since IPv4 is only supported and I'm assuming again that since these adapters have IPv6 support that Nethogs reports this, then hopefully you can remove this from a newer version so it's not showing this?
Here's a screen shot, it's 0.7.0, but 0.8.0 does the same;