Here it is. Use it on an experimentation rom.
Replace those grass tiles at the bottom right of the tileset and just save it.
Don't use "save as" because that will only screw up the type it will be.
Just get a spare tileset(make it the tileset with the tree palettes.)
Give it a name to make sure that is the experimenting one.
I'll give you something to use. I'll upload it now.
It's just me, but I always just "save" it. It always tells me to save it as a type of image(png, jpeg, etc.) and I can never save it as what it's supposed to be.
Remember to keep all of the palettes within the palette limit.