Giving your forum an entirely new look and feel is easy — just download one of these great themes! There are even themes for the admin control panel.
Projects in Dark

Free Responsive MyBB Theme - NetPen

Roundo-Darko is a dark version of the Roundo theme. This theme gives a dark, modern, responsive look to MyBB.

Fully responsive, modern & multicolor theme for MyBB 1.8 (Documentation included)

MyBB Dark is a twist of the default MyBB theme in that everything is darkened.

Free dark flat theme

The default MyBB theme with inverted colors blue and black.

Elegant, General dark and light theme for mybb

Elusive is a clean and elegant Flat MyBB theme which can be used by all sort of community users. Elusive is a mobile-friendly, fully responsive theme for MyBB 1.8.11, optimised for performance.

The responsive version of MyBB's default theme with mobile friendly and with new look .

A flat and simple responsive premium theme for free!

Dark Night is a modified dark version of the default ACP Theme

Cheater theme, very basic and my first theme.

Impulse Dark is the sister theme of Simple MyBB Variant Theme

Dark and responsive theme for MyBB 1.8 by Marihunaen.

Inferno theme for mybb

Default theme but more contrast, mobile friendly, spacing between posts; free of banners etc

A dark theme for the admin control panel.

This is a great theme for hacking sites

Responsive, multicolor, includes a dark style. This is the same theme as the previous BootBB, just reuploaded.