The south window of the bedroom can't get sunlight. What curtain is better for geomantic omen?

Does the subject want to ask, "the sun can't shine in the south window of the bedroom?" What color curtains will Feng Shui use? " Red. In traditional culture, red represents happiness and is a symbol of enthusiasm, cheerfulness and boldness. In geomantic omen, the five elements of the East belong to wood, which is full of vitality and symbolizes the spirit of youth and courage.