MyBB Community Forums

I'm relatively new to MyBB and my Forum is up and running. As more people join I need to make the design stronger.

How do I add sections with Big Blue Headers? Here they are 1.8 Support, Development, Resources etc.

Thanks in advance

I think you are asking about forum Managements(Categories and Forums), if yes then check this guide
https://docs.mybb.com/1.6/Admin-CP-Forum-Management/