There are three main colours that you will need. The are the primary colours: red, blue and yellow. All other colours can be made from mixing the three. You can make secondary colours by mixing ...

When you mix blue and yellow light, you get gray – exactly ... for every pixel instead of just three channels to cover red, green, and blue values. That was a particular deal-breaker in the ...

carotene makes them look red or orange, and xanthophyll makes them look yellow. Plants make fruits and flowers look blue by shifting acidity levels, adding molecules or mixing pigments.