The Meaning of Life, the Universe, and Everything.
Just tried to create a world with AMPLIFIED feature, this seed came out really really awesome! Beware that it can brake a bit while generating, since it's just huge this all over. I really recommend it!
Be sure to set the World Type to AMPLIFIED. Otherwise it won't work.
Also, sugar canes are being colored dependently to a block they are planted on. So at swamps you will find two different colors of them, one is a bit more yellowish, while second is more saturated and darker green etc.
I love the new Amplified world type option!