You can access the Project Settings panel from the Project Home page.
Use the Settings button near the top right of the Project Home Page to access the Project Settings panel:
Project Settings panel:
The Project Settings side-panel
Project Settings Overview
Learner Experience Settings 
Allows you to toggle the Learner experience to use Learn or 4.x UI and further customize the learner experience.
General Settings
Customize general course settings that include enabling Learning Dashboard features, enabling the dynamic glossary page, chaging primary/secondary colors for the course and other content settings.
Custom Labels
Allows you to customize Unit, Module and Assessment title labels. These labels are visible in SmartAuthor and published courses.