The lighting in this scene can be cataloged mainly as a symbolic style of lighting. The characters are lit by another source/s lights different from the lamp placed over the table. Also the pink ball, the white ball, the billiard stick and the character point to a picture on the background which is lit with an individual source light, I mean, there is a light for this picture, therefore if the entire composition is analyzed, this picture possess a strong meaning, is a message. Also there are many dark parts in the composition and only the symbolic elements are lit.