The song "True Colours" by Gallows appears to be using metaphorical language to convey a message about betrayal and deceit. The lyrics compare the subject of the song to a snake, suggesting that this person appears harmless at first but eventually reveals their true nature. The repetition of "True colours, shining through" emphasizes that the person's true intentions or character cannot remain hidden and will eventually be exposed. The line "Like the 4th of July" is a simile, comparing the dramatic revelation of the person's true colours to the explosive and colorful nature of fireworks on Independence Day. This suggests that the unveiling of the person's deceit is impactful and significant. Overall, the song seems to be cautioning against trusting someone solely based on their outward appearance or initial actions, as their true nature will eventually be revealed.