The flag of West Chester, Pennsylvania. From the legalizing legislation, "The six stripes of the tilted grid pattern shall represent the original six streets laid out to form the Borough of West Chester, currently known as – Market, High, Gay, Chestnut, Church and Walnut Streets – and symbolize the importance of those streets in forming the foundation for the culture, history, and vibrance of the Borough since its founding.”
https://west-chester.com/DocumentCenter/View/11693/WCBFlag0719-3x5?bidId=

https://west-chester.com/DocumentCenter/View/9354/Flag-Ordinance--2202019?bidId=
Julie Allen, working for the Borough of West Chester