Answer:
In the context of this short story, the central idea/theme that the author covers throughout the narrative would be 'fear and bias' that the town people faces from Griffin and their choosing Minor Canon as an act of prejudice to get rid of Griffin's visit there.
The people were terror-struck with the name only of Griffin visiting the town and therefore, they wanted Minor to have a word with him as they consider the latter with a prejudiced perspective and handovers the tough
nuts always to him to crack. ⚫ Yet Minor treats the issue with kindness and calmness and assist
them in coming out of this