In this cute promo shot, Max Factor uses a makeup grey scale on a model to test colors for film. This helps the cameras and lights focus better. You can also see his Max Factor beauty factory above, which is now the Hollywood Museum. If you have a chance to go, it is a must just for his makeup rooms alone! There is one for Redheads, Blondes, Brunettes and Brownettes. Max Factor is a pioneer, as are the Westmores, in the beauty industry, so I always love photos of them!
Here Betty Grable is getting made up for a television appearance. I assume this is the earlier days of tv and/or lighting, as color adapting quickly evolved even with black & white broadcasting, where the makeup for performers was not so drastic. Green is a compliment for red which is why the artists would use this particular color to bring out features.