Ok it's out of the pool.
The mold that was in the stitching is gone

There is only a TINY bit left on a white panel but it's gone from a healthy green to a dead black [}:)]
I rinsed the kite in fresh water and am leaving it outside to air a little before I take it inside and let it dry in the garage.
I found that much of the mold is growing in the seams where water just sits - wtf slingy! Luckily this water now has chlorine in it so I don't think it will be a problem for much longer :).
None of the colour has faded.
So there you are - salt water pools kills mold! :D ... well most of it.
For the record I only left it in there for about 3 hours (1.5 on each side).
I shall get some kind of protectant just in case and will dip (crash) my kite into seawater to get rid of the remaining chlorine.