"
do agree the grey-ish colour isn't the wisest for light transmission and visibility in mist. Is there any reason Henry has no flexibility in the colour scheme area?"
There are several colours available with more or less the same base and coating but it isn't practical for TT to have more than one colour and whatever other colour we would choose would please some and displease most.
For example some like yellow but others reckon it attracts insects and or is too bright.
Because all of our shelters are single skin or can be used as single skin, whatever colour you choose it will cause a colour cast inside.
So if you spend some time inside a green tent you will see red when you come out of it...
But do keep in mind that about 8% of Aussie males (but only 0.4 of females...) suffer from some colour blindness/deficiency so you need to take comments about colours with 2 grains of salt.
http://en.wikipedia.org/wiki/Color_blindness(ask anyone that works for a pro colour lab...)
Franco