RGB_Mapping By_level
! Ferret line-colors (not in order used by Ferret)
 
! Level    Red    Green   Blue
 1           0       0     100  ! blue
 2         100       0       0  ! red
 3           0     100       0  ! green
 4           0     100     100  ! cyan
 5         100       0     100  ! purple
 6           0       0       0  ! black
