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
Another Hacking Forum Theme
This is a great theme for hacking sites
A darkness bassed default theme.
Roundo-Darko is a dark version of the Roundo theme. This theme gives a dark, modern, responsive look to MyBB.
Darkness Theme for MyBB 1.8.31. Theme is not responsive.
Inferno theme for mybb
Green Noise
by sirev
Green noise theme under blue-grayed backgrounds.
Cheater theme, very basic and my first theme.
BLUX - A nice & simple flat theme for MyBB.
Free dark flat theme
Material new admin panel theme
The responsive version of MyBB's default theme with mobile friendly and with new look .
Responsive, multicolor, includes a dark style. This is the same theme as the previous BootBB, just reuploaded.
This dark SC Editor style can be useful for forums with dark themes
Add a dark color for your Default theme
theme update for Mybb 1.8.x
A very simple black and grey efficient theme and template. Easy on the eyes, useful member block controls. A great theme if you want users to spend lots of time on the forum.