Has Thai changed their colour to non-metallic paint, their photos lack the silky shine that was introduced on the current livery, MICA metallic paint gave that look, now that seems to have been replaced by normal paint and a lighter colour from the original.

Given time then I am sure you will get a whole lot of responses to your post.

the new paint is water based

For questions like this I think it's better to head off to the Thai Forum of this website:

www.skyscrapercity.com