Help with palette change

OK, I'm replacing the sprite for Terra with a new sprite that uses
palette 4. I know I saw a guide somewhere on the site talking about
what hex values to change for the characters in the over world as well
as battle sprites, but I can't seem to find it now. if anyone could
point me in the right direction or link me to the thread I'm looking for
it would be appreciated.

This can easily be manipulated in FF3usME but here https://www.ff6hacking.com/forums/showth...le+sprites

also, out of curiosity, what is the Hex editor of choice for you master
FF6 Hackers? I'm looking for a good one but I haven't found one I really
like yet.

I hear a majority of hackers here use WinHex, but I use HxD.