Las Vegas is rolling out a new logo on city vehicles, uniforms and signs that pays homage to Sin City’s playful reputation and vintage glamour. The new logo unveiled at a city council meeting Wednesday features a swooping, retro font accented by colorful, midcentury modern diamonds. The city says in a statement that the new logo will be used throughout Las Vegas and in marketing materials. City spokesman David Riggleman says officials wanted a look that highlights the city’s excitement and unique history.