nana-4 Material Theme Dark by Tom

Unofficial Firefox theme with colors from the nana-4 material gnome theme (<a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/59a580391c17cded39825da7feff03f1619947cc12159b37be71d2f3926fa509/https%3A//github.com/nana-4/materia-theme" rel="nofollow">https://github.com/nana-4/materia-theme</a>)