I have run an HN clone for China's Linux hacker community, we use dark & green color and it's pretty cool in my view, you can check the page archive here: https://web.archive.org/web/20170905074904/http://hack.fdzh....

The source code: https://github.com/fdzh/anarki/commit/5a58ef38111215258a2694...

BTW, I would recommend using Eigengrau rather than total black. https://twitter.com/AustinTByrd/status/1105822085362925568