Responsive and modern theme to fully replace default bbPress theme templates and styles, with multiple colour schemes and Customizer integration for more control.
Most Helpful Content for GD Quantum Theme for bbPress
Yes. Each site in the network can activate and use the plugin.
All Dev4Press plugins and addons require jQuery. But, they will work only if the jQuery is loaded with the WordPress proper Enqueue method. If you are replacing jQuery that comes with WordPress with some other version loaded from other location, my plugins will not function properly, and that goes the same for most of the other WordPress plugins that depend on the proper way for loading jQuery.
Activating the plugin is only the first step, you need now to tell bbPress to use the Quantum theme package. To do that, open the bbPress settings (Settings -> Forums) and find the Theme Package settings, and switch to the bbPress Quantum theme package.