Hello, I have a problem with my new tileset. I kinda worked my way through adobe illustrator 2014 doing what you have done here. I recolored the World_A2 and all i did was turn the saturation down to where everything is in different shades of grey. I saved it, then after saving I exported it as a .png file onto my desktop, imported it back into RPG Maker VX Ace, and tried making a map with it. The grass and the sand work as normal, they connect as they would do when they are placed by each other, and so do the forest and the mountains, as it adds additional trees and mountains when there is a 2x2 square of the same block.
My problem is when I try putting the forest or mountains on top of the grass or sand it erases the grass or sand and im left with forest or mountains hovering over nothing. I would very much like a forest placed on top of my grass. How do I fix this?