darkpixlz's Modern Theme is a large theme built for Discourse, which is fully customizable and styles most every area of your forum for admins and normal users.
https://meta.discourse.org/t/darkpixlzs-modern-theme/232543?u=darkpixlz
I will likely not be adding any new feautres to this nor fixing existing issues anymore. For more info, read: https://meta.discourse.org/t/232543/87?u=darkpixlz
PRs are still welcome and will be reviewed.
=======
Newer versions could be broken. Wait for a patch if there is a breaking change!