Passage: The following names were used for named storms that formed in the north Atlantic in 1988. The names not retired from this list were used again in the 1994 season. This is the same list used for the 1982 season. Storms were named Gilbert and Joan for the only time, and Isaac and Keith for the first time in 1988. Florence and Helene were not used in 1982 but had been used in previous lists. Names that were not assigned are marked in gray.

Question: What color are names that are not used to describe hurricanes marked in?
gray