City Clerk Susana Mendoza is investigating claims that the city’s 2012-13 vehicle sticker — intended for every Chicagoan’s windshield — includes symbols honoring the gang that Police Supt. Garry McCarthy vowed to destroy.

The city sticker design, which includes the city’s skyline inside a heart, with hands pointing up towards a police hat, fire department helmet and paramedic symbol, was advertised as honoring Chicago’s emergency responders.