The theme that is most supported by the details in the text is:
People’s moods often change with the time of day.
In the excerpt, Norman Gortsby finds a sense of harmony in his surroundings during the dusk, a time he associates with the defeated and those who conceal their misfortunes. The description of the dusk setting creating a mood of emptiness and the presence of unconsidered figures reflects the idea that the time of day influences people's emotions and perceptions. The transition to dusk symbolizes a change in mood - from the busyness of the day to the quiet, contemplative atmosphere of evening where individuals confront their personal loss in a more private manner.