Re 2011 Hyundai Sonata Limited with navigation, please be so kind as to educate me as to what number of feet away from a bumper each different color of line represents in the backup rearview mode of the navigation screen when one puts the car into reverse?

In other words, how many feet away from rear bumper is the space represented in the rear view monitor by the color red, the color green and the color yellow?

Thank you!!!