This feature allows you to display a Pathway graphically as shown below rather than as a list of activities. You may have a standard Unicorn theme or your own branded theme as per your initial configuration. Therefore your theme may look different to the example shown.
When you are creating the Pathway, choose the Display using theme radio box within the Details tab at the bottom of the screen.
Choose the theme you wish to use from the dropdown menu - the options available will depend on the configuration of your LMS.
Click on Save Changes.