There are five possible ribbons or banners for Courses that will appear on the Public site that are meant to highlight courses based on certain criteria.
Waitlist will automatically appear as a ribbon on any course that has all sections full with the waitlist option enabled and active for the sections.
Full will automatically appear as a ribbon on any course that has all sections full with no waitlist option available or active.
Starting Soon will automatically appear on any course that currently has sections open for registration and has additional sections starting within five days.
New will automatically appear as a ribbon on any course that has a course section that has come online and stays visible for three days from the online registration start date.
Popular will automatically appear on any course that is currently experiencing the highest number of enrollments. The algorithm that it uses takes into account factors like how close time wise the enrollments are occurring, how full the course is, how long the course has been online along with other factors.
These ribbons/banners appear automatically. There is not any way to customize, change or disable them.