Yes, when you switch iso lines on, they should stay on by default until the user turns it off. As a user, I always want isolines on, so it is very annoying to have to manually turn them on every time I open Windy.

Yes, when you switch iso lines on, they should stay on by default until the user turns it off. As a user, I always want isolines on, so it is very annoying to have to manually turn them on every time I open Windy.