sizeMin value = 1
sizeMax value = 10
sizeRatio is a 0-1 attribute
when sizeRatio = 0 -- all smaller ones (blue curve in image)
when sizeRatio = .5 -- even distribution of small and large (green curve in image)
when sizeRatio = 1 -- all larger ones (red curve in image)
I'm assuming its a pretty simple pow function....any ideas?