In this theme, category templates have features and custom options very similar to pages and these are already described in more details in “pages” section of this documentation. Each category may have its own specific color, sub-header settings, description, and specific sidebar.
It can be quite interesting if you want to give some accent and style to each category on your website, feel free to be creative.
To create or edit categories, go to Posts -> Categories screen and follow provided options. Below is an example of a properly created category with most of the features used.