Editing monsters
From MM6 Wiki
Recoloring
Palette Translation
Extract a sprite of the monster you want to recolor. One of the best tools to alter palettes is GrafX2. Load up the image and press "PAL" button, here you can alter the palette of an indexed image. When finished submit the changes and save the result as a .BMP file. You need to keep the first color unchanged.
Here is a simple color alteration of goblin's palette: https://www.youtube.com/watch?v=pSsYTj9kCHE
The result:
Getting palette index
Now we need to figure out what palette the original sprite is assigned to. To do that check out DSFT.BIN page. There find the name of the sprite you were altering and look at the number in the "palette" column".
According to it tier 1 Goblin is using palette #225. Right now I will change only tier 1, so now we know that we need to replace palette #225 to alter that version's appearance.
Replacing the existing palette
Prior to replacing the palette file rename it as forwards: "PAL" + palette index. And remove the .BMP extension from the end of the filename. In that case the name should be "PAL225"
Now add the file to BITMAPS.LOD with MMArchive and check out the result!
