The green clothing worn by the man is common clothing worn by villagers and people working in port towns. The yellow clothing worn by the woman is common clothing worn by young townspeople. Kimono is a traditional Japanese clothing that is rarely worn in Japan today.
This was the first time I've seen this movie this dance scene was so unexpected my jaw dropped, though I remember the scene of the farmers dancing in the rain. Reminds me of Bollywood film dance sequence .really loved it.