Welcome to Librarium Online!
Not sure if I should post it here, but what the heck.
The new GW staffmember of my local store who plays lizardmen showed it to me, just before we played a 2 vs 2. In almost every picture in the army book are chameleon skins hidden in the bushes. Not the artwork ( could be, didn't look there ) but all of the photo's. Just look closely and you will see them everywhere, hidden in the jungle, quite funny.
It emphasizes their abilities really ^^ If you would paint them right and give them good camouflage bases, your enemy might fail to notice them a turn Happened to some fellow players in a tourney, to didn't notice some guys in the bushes who were all camouflaged so didn't notice them for the purposes of marchblocking. Opponent went al game long 'watch out, they cheat' xD
Anyway, look at the photo's and you will see them everywhere
Yeah they are in every photo bar one
Daemonic cheese-how? Well, you would need to start with daemonic milk, i guess...
i've only noticed them on some pictures, gotta have a look. but i have concluded that there are a maximum of 3 chams on the special slann.
I had noticed them before and didn't really think of it. In hindsight is a nice touch.
They aren't in a few though:
pg 34 Slann picture
pg 35 Kroak picture
pg 38 bottom
pg 39 bottom
pg 47 both pictures
pg 81 both pictures