What is the theme in Romero's shirt?

Without specific context about which "Romero" or shirt you are referring to, it's challenging to provide an accurate answer. However, if you're referencing a character or a specific event, the theme of a shirt can often reflect personal beliefs, cultural identity, or social messages. For instance, a shirt might feature symbols of resistance, unity, or heritage, conveying deeper meanings about the wearer's values or experiences. If you provide more details, I can give a more tailored response.