On Wed, 10 Sep 2014 08:09:37 +0100, News wrote:

Its very bright shiny galvanized finish is a bit overpowering. Is there
any way to encourage moss etc to grow on it to get it to blend in more?

The traditional method with walls is to paint on a watered down mixture
of old milk or yoghurt, but painting a chain link type fence may take
time!

Use a sprayer?