Chapter 1 - "a thundering lie" gives the reader the enormity of the deception the soldier feels is being given out by the officers regarding their movement toward the front. Thunder usually denotes rain and water is very sensual in literature.
Chapter 2 - Crane uses color words to invoke the reader's imagination such as "red eyes" for the enemy's campfires glowing on the hillsides at night. "Red, shivering refection of a fire on a white wall" to give the reader an introspection of Henry's feelings of lack of security and perhaps inward suffering and doubts. Red is the color of passion and excitement.
Chapter 24 - Henry reviews inwardly his performance on the battlefield and is proud of what his fellow soldiers have seen him do and have commented on his bravery. But the act of leaving a fellow soldier to die alone without helping him, weighs on Henry's heart and mind and he feels that this has "darkened his view of those deeds in purple and gold." Purple and gold are usually associated with royalty and being brave and a hero is akin to being royal among common soldiers.