Mod requests (orders).

Configure the advanced map editor, select the Creature table; in the folder tree, find the alt-grade wyvern. Double-click to open the wyvern Creature, and the creature's properties will appear. Among them, look for CreatureVisual => ... => ArenaCharacter => ... => Model => ... => materials => +. In each of the materials, there is a Texture line in the properties, which indicates the path to the texture. Write down/remember all these paths, open data/data.pak, and find the texture files at these paths, in dds format. Open, edit, and save. (Don't forget to remove the "Read-only" attribute from the file).