Here's a couple of pics I made checking stuff out:
The top row used a white(1) to Black(0) and goes left to right 1, .8, .6, .4, .2 and a pair of 0's that don't displace
The 2nd row is Red, Orange, Yellow, Green and Blue
There's a 3rd Painted shader for squiggles with mixed colours and it's used as a colour and displacement map.
tgd added if y wanna check it out
