[ferret_users] How to drawing rainbow color lines?

[Jian Ma <jianma@xxxxxxxxxx>]

Dear All,

I am thinking of drawing rainbow color lines as default in GrADS. It is
a useful capability but Ferret could only draw 6+white color lines with
3 thickness. What a pity!

Is there any method to draw any color line like we easily do in shade?
Or will new versions of Ferret include that function?

Many thanks,
Tony