Let’s get one thing straight. The saying "blue and green should never be seen" derives from a seafarer's tradition of not painting the hull of a boat green in case it's capsized and is harder to ...

Note: The colors shown in the output in this book may be different from the colors you see on your device. bb is the color's blue ... This scheme allows for up to 256 levels of each color component.

Are you passionate about nature and the environment? Have you done something to help protect our planet, or encouraged other to help? Then maybe it's time to earn your Blue Peter Green badge.