If you like frosting cakes and bakes, you can make your own food dyes, without resort to chemicals or dead red insects for pink or red cakes (cochineal or carmine). Crowded Kitchen has a great post, just look up your preferred colour to find the instructions. Read up on food safety for people & pets. The dyes include:
- Matcha is a Japanese powder to turn things green
- Beet powder can turn things pink or red.
- Acai is a superfood berry to turn things purple
- Turmeric is a spice to turn things yellow
- Charcoal powder is used to make things black