These are indeed cool.
As far as I can tell, any chest that you can buy have the probabilities displayed.
pro chests in the pro shop
that 5 uber chests for 1500 gems promo
pal/uber chests for sale
uber friend chests (300 gems)
Unfortunately, rewarded chests are not included. I would like to know the probabilities of rewarded pro chests and uber ninja/war chests.