Telling the Story - The Art and Technique of Digital Color Correction - page 330

Serious moments don't have to be low color, but I think it definitely
helps to convey a message.

- Janet Falcon, Shooters Post

She adds a vignette and darkens the edges ( Figures 8.5 and 8.6 ) . The
darkened vignette serves several purposes for the image: It focuses the
attention on the Marines. It gives some depth and texture to an otherwise
flat, burned-out sky. And it also creates a degree of tension by claustro-
phobically “surrounding” the soldiers.

Fig. 8.5 First secondary gives texture to the sky and focuses attention.

Fig. 8.6 Data for outside of first secondary correction. Lift, gamma, and gain on the edges of the image have all been lowered.