Modification of Biome Staff will add a special tool that like the pipette will be able to take information from one biome and how to transfer it to the blocks of another, in fact you will be able to change the color of the grass and leaves without changing the blocks themselves.
How to install Biome Staff Mod
- Download and install Minecraft Forge
- Download mod
- Do not unzip it, copy to C:\Users\User_Name\AppData\ Roaming\.minecraft\mods