Nano Emacs – a set of config files to improve the look and feel of Emacs (github.com)

Nicholas has broken this out into multiple packages, and is actively updating only those. Here is the theme. See: https://github.com/rougier/nano-theme

Seems like a poor naming choice as Nano is already a common text editor

The mu4e front end looks really nice. I’ve ne er wanted to use Emacs as a mail client but this could worth a try