"
know
You just gotta ignite
You're a firework. It means you are bright and sparkle up. Fireworks are pleasing and they make you feel happy. In this she's not talking about the negative parts of fireworks like the bang but she's complimenting you. This whole song is about you being amazing and trying your best and that you're awesome. She's saying that you're bright which means you're smart. You're colorful meaning you're fun and that you are overall amazing and light up the night. Just like a firework. Rock on!