Answer:
Playfulness or happiness
Explanation:
Bright colors and fruits are often used to add a happy and light feeling to something. An orange peel gives a good visual about how bright the umbrella must be. If it were as grey as a ROCK that would infer that the mood is sad or bored.
In Games at Twilight, the children were eager to go outdoors to play because it was 'hot and stuffy' inside the house, and they couldn't really play indoors. In those days, when you play, you play outside
hope this helps
