Symbolic meaning of green:
In the Middle Ages, green represented evil spirits (including dragons) and sometimes love. These symbolic meanings are not obvious in modern times.
Green means allowing action, because green means feasible in traffic signals.
Green can play a protective role, so the army and wild teams usually use green uniforms.
In the United States, because the color on the back of a dollar bill is green, green represents money, wealth and capitalism.
In the North American stock market, green represents the stock price rise; In East Asian stock markets, the situation is just the opposite.
Little green men stands for alien in English.
In China's Five Elements Theory, green is the symbol of wood.
Green is the color of plants, which has the meaning of life in China culture and is also a symbol of spring.
The color of military uniforms in most countries in the world is mainly green.