It could have intense and vivid visuals to convey the seriousness and importance of the theme. The colors might be used to heighten the emotional impact.
The color in a matter of life and death comic could be used symbolically to represent different emotions or situations. The art style might be realistic to add to the gravity of the subject matter.
Typically, such a comic would have detailed and expressive character designs to show their emotions and struggles. The story might have a compelling plot with high stakes and moral dilemmas.