Guide
Type /rank in chat to view the full list of commands.
After that is done and you have the list of commands, you can do /rank create . I'm going to use the Test rank for now. After you have created your rank, it will open a GUI where you can edit everything about the rank.
We're going to edit a rank with the command /rank edit
Now you will get a GUI with all the stuff you can edit for that rank. I'm going to change the color.
In here you can choose every color you want, I'll go for dark red.
Now we're going to change the prefix of the rank.
Once you have granted you or someone else the rank (/grant), you can type in chat and see the prefix and color.
To add a permission to a rank you edit the rank again, and click Permissions.
You should see this menu after doing this.
Once you have added the permission, you can view the permissions GUI and see the permission you have added
