Interesting facts:
• Yellow color is a feng shui color which signifies cheerfulness, sunlight and optimism. If any particular room of your house lacks light, then you can add a bit of yellow color to the room which will compensate for the lack of light.
• Lemon was the original scent of the yellow colored Magic Scents Crayons from Binney & Smith Inc. introduced in 1994 with mostly food scents. There were numerous reports that children were eating the food-scented crayons, so the food scents were retired and replaced with non-food scents. The scent for the color yellow became "daffodil".
• In order to stimulate and give some recognition of a certain achievement to the student, Dr. Jigoro Kano, founder of Judo, created such divisions and introduced Belt colors. The Yellow Belt symbolizes gold ore. Just as gold, which is a precious metal never subject to rusting, so is the knowledge of martial arts, the Tae-Kwon-Do, forever with the student.