It relies almost 100% on Bootstrap 3 with minimum overrides and it’s 99% tables. If you are familiar with Bootstrap 3 it’ll be like fun dealing with this MyBB theme.

This is clean, basic version (default-blue), but it has four more color combinations:

Green
Orange
Purple
Generic uses different css files related to colors, depending on what color combination you wish to edit.

Features

Sidebar/Full width.
Font Awesome icons.
Supported MyBB Plugins.
Very original and unique Dark Flat Forum look.
Beautiful, professional Header and Footer.
Customized for both classic and Modern Postbit.
Social Share included.
Custom, beautiful Editor.
Extensive Documentation.
One of the best Responsive/Mobile look among MyBB Themes.