There’s a cool overview on how to do this on their ... that offers up the capacity for producing a virtual green screen, a background blur and also the ability to add standard image backgrounds.

If you would like to create amazing effects in your next video or photo, a green screen background can help remove your current background and replace it with something more creative and visually ...

green is used because it is a "cool" color. The sign's green background tends to blend in with the greens, blues and browns of the natural landscape, while also providing a great contrasting ...