How do I know if my lecture is being recorded? What does the color of the light on the lecture recording camera mean?

In College of Engineering classrooms, the lecture recording camera has a light that will illuminate with a cyan (greenish-blue) color when a manual recording is in progress:

Image of camera recording and not

Additionally, the light acts as a presentation timer by changing colors to indicate the time remaining for a scheduled recording. It will change from green to yellow (10 minutes remaining), and finally to red (2 minutes remaining):

On, scheduled recording countdown for cameras

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