There is no specific dress for the woman in 'iddah

Question: Is it obligatory for the woman in 'iddah to adhere to clothing of a specific color, as some indicate by saying: they oblige her to wear white clothing throughout the period of 'iddah?

Answer: It is not obligatory for the woman in 'iddah to wear specific clothing; she may wear black, and white that does not resemble men's clothing, and she may wear green and yellow.
The point is that she wears women's clothing that does not resemble men's clothing, but it should be clothing that is not beautiful and not eye-catching.