I know, this is a very tiny detail which I might be the only one that bothers but I wanted to propose a tiny change for the Displace TOP default value for the Vertical Source to be change to Green instead of Blue. Here is my reasoning:
Mostly displacement maps use a UV like texture, for consistency, I think it makes sense to rely on the known UV map of the texture coordinates like this:
As the Blue channel is set by default, it indirectly forces you to use a texture that can have a Blue channel. The only option then is to use a RBGA format which uses 2 extra channels that are not needed for the Displace TOP. This seems not a big deal but when you use a lot of displacements it does increase the GPU memory used by quite a lot, as it uses double the GPU memory.
Personally I always set it to Green and I add a Noise TOP in the second input with a 32bit RG format, which otherwise with Blue being the default it forces to use a RGBA texture.
Technically speaking, this would be an environmental friendly change. 
Have a nice day.
