Changing Light Bulbs?

2015 Jay Flight SLX 195Rb with oval ceiling lights. The owner's manual says 921 bulbs. The white opaque lenses seem to cover the base as well. They have 2 slots on ech side at the ceiling line. One rocker switch at the end.

How do you get the lenses off to change a bulb? They don't come off easily and I didnt want to pry and break the lens...